Home / 770,643.20-1,063,520.16-476,358.32

Finding the Fourth Proportional to 770,643.20, 1,063,520.16 and 476,358.32

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Solution

The fourth proportional to 770,643.20, 1,063,520.16 and 476,358.32 is: 657,394.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,643.20 : 1,063,520.16 = 476,358.32 : x
  2. Step 2: Convert to fraction form
    770,643.20/1,063,520.16 = 476,358.32/x
  3. Step 3: Cross multiply
    770,643.20x = 1,063,520.16 × 476,358.32
  4. Step 4: Simplify right side
    770,643.20x = 506,616,676,703.73
  5. Step 5: Solve for x
    x = 506,616,676,703.73/770,643.20
  6. Step 6: Final answer
    x = 657,394.60

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.