Home / 1,152,972-1,591,260.12-643,702.32

Finding the Fourth Proportional to 1,152,972, 1,591,260.12 and 643,702.32

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Solution

The fourth proportional to 1,152,972, 1,591,260.12 and 643,702.32 is: 888,397.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,972 : 1,591,260.12 = 643,702.32 : x
  2. Step 2: Convert to fraction form
    1,152,972/1,591,260.12 = 643,702.32/x
  3. Step 3: Cross multiply
    1,152,972x = 1,591,260.12 × 643,702.32
  4. Step 4: Simplify right side
    1,152,972x = 1,024,297,830,967.48
  5. Step 5: Solve for x
    x = 1,024,297,830,967.48/1,152,972
  6. Step 6: Final answer
    x = 888,397.84

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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.