Home / 657,675.53-907,743.88-385,830.75

Finding the Fourth Proportional to 657,675.53, 907,743.88 and 385,830.75

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Solution

The fourth proportional to 657,675.53, 907,743.88 and 385,830.75 is: 532,535.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,675.53 : 907,743.88 = 385,830.75 : x
  2. Step 2: Convert to fraction form
    657,675.53/907,743.88 = 385,830.75/x
  3. Step 3: Cross multiply
    657,675.53x = 907,743.88 × 385,830.75
  4. Step 4: Simplify right side
    657,675.53x = 350,235,502,028.31
  5. Step 5: Solve for x
    x = 350,235,502,028.31/657,675.53
  6. Step 6: Final answer
    x = 532,535.40

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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.