Home / 657,350.46-907,141.83-355,543.74

Finding the Fourth Proportional to 657,350.46, 907,141.83 and 355,543.74

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Solution

The fourth proportional to 657,350.46, 907,141.83 and 355,543.74 is: 490,649.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,350.46 : 907,141.83 = 355,543.74 : x
  2. Step 2: Convert to fraction form
    657,350.46/907,141.83 = 355,543.74/x
  3. Step 3: Cross multiply
    657,350.46x = 907,141.83 × 355,543.74
  4. Step 4: Simplify right side
    657,350.46x = 322,528,598,948.64
  5. Step 5: Solve for x
    x = 322,528,598,948.64/657,350.46
  6. Step 6: Final answer
    x = 490,649.39

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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.