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Finding the Fourth Proportional to 526,548.49, 726,406.12 and 308,646.70

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Solution

The fourth proportional to 526,548.49, 726,406.12 and 308,646.70 is: 425,797.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,548.49 : 726,406.12 = 308,646.70 : x
  2. Step 2: Convert to fraction form
    526,548.49/726,406.12 = 308,646.70/x
  3. Step 3: Cross multiply
    526,548.49x = 726,406.12 × 308,646.70
  4. Step 4: Simplify right side
    526,548.49x = 224,202,849,210.17
  5. Step 5: Solve for x
    x = 224,202,849,210.17/526,548.49
  6. Step 6: Final answer
    x = 425,797.16

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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.