Home / 657,290.13-907,060.38-355,484.13

Finding the Fourth Proportional to 657,290.13, 907,060.38 and 355,484.13

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Solution

The fourth proportional to 657,290.13, 907,060.38 and 355,484.13 is: 490,568.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,290.13 : 907,060.38 = 355,484.13 : x
  2. Step 2: Convert to fraction form
    657,290.13/907,060.38 = 355,484.13/x
  3. Step 3: Cross multiply
    657,290.13x = 907,060.38 × 355,484.13
  4. Step 4: Simplify right side
    657,290.13x = 322,445,563,729.05
  5. Step 5: Solve for x
    x = 322,445,563,729.05/657,290.13
  6. Step 6: Final answer
    x = 490,568.09

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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.