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Finding the Fourth Proportional to 717,710.25, 990,852.51 and 476,320.13

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Solution

The fourth proportional to 717,710.25, 990,852.51 and 476,320.13 is: 657,595.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,710.25 : 990,852.51 = 476,320.13 : x
  2. Step 2: Convert to fraction form
    717,710.25/990,852.51 = 476,320.13/x
  3. Step 3: Cross multiply
    717,710.25x = 990,852.51 × 476,320.13
  4. Step 4: Simplify right side
    717,710.25x = 471,962,996,921.66
  5. Step 5: Solve for x
    x = 471,962,996,921.66/717,710.25
  6. Step 6: Final answer
    x = 657,595.45

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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.