Home / 657,347.17-907,139.10-355,541.17

Finding the Fourth Proportional to 657,347.17, 907,139.10 and 355,541.17

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Solution

The fourth proportional to 657,347.17, 907,139.10 and 355,541.17 is: 490,646.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,347.17 : 907,139.10 = 355,541.17 : x
  2. Step 2: Convert to fraction form
    657,347.17/907,139.10 = 355,541.17/x
  3. Step 3: Cross multiply
    657,347.17x = 907,139.10 × 355,541.17
  4. Step 4: Simplify right side
    657,347.17x = 322,525,296,966.75
  5. Step 5: Solve for x
    x = 322,525,296,966.75/657,347.17
  6. Step 6: Final answer
    x = 490,646.82

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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.