Home / 740,638.80-1,022,082.12-418,349.52

Finding the Fourth Proportional to 740,638.80, 1,022,082.12 and 418,349.52

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Solution

The fourth proportional to 740,638.80, 1,022,082.12 and 418,349.52 is: 577,322.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,638.80 : 1,022,082.12 = 418,349.52 : x
  2. Step 2: Convert to fraction form
    740,638.80/1,022,082.12 = 418,349.52/x
  3. Step 3: Cross multiply
    740,638.80x = 1,022,082.12 × 418,349.52
  4. Step 4: Simplify right side
    740,638.80x = 427,587,564,302.58
  5. Step 5: Solve for x
    x = 427,587,564,302.58/740,638.80
  6. Step 6: Final answer
    x = 577,322.66

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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.