Home / 1,056,404,428.80-1,584,606,643.20-647,690,870.40

Finding the Fourth Proportional to 1,056,404,428.80, 1,584,606,643.20 and 647,690,870.40

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Solution

The fourth proportional to 1,056,404,428.80, 1,584,606,643.20 and 647,690,870.40 is: 971,536,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056,404,428.80 : 1,584,606,643.20 = 647,690,870.40 : x
  2. Step 2: Convert to fraction form
    1,056,404,428.80/1,584,606,643.20 = 647,690,870.40/x
  3. Step 3: Cross multiply
    1,056,404,428.80x = 1,584,606,643.20 × 647,690,870.40
  4. Step 4: Simplify right side
    1,056,404,428.80x = 1,026,335,255,975,830,272
  5. Step 5: Solve for x
    x = 1,026,335,255,975,830,272/1,056,404,428.80
  6. Step 6: Final answer
    x = 971,536,305.60

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.