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Finding the Fourth Proportional to 586,082.16, 807,346.80 and 499,760.28

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Solution

The fourth proportional to 586,082.16, 807,346.80 and 499,760.28 is: 688,435.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,082.16 : 807,346.80 = 499,760.28 : x
  2. Step 2: Convert to fraction form
    586,082.16/807,346.80 = 499,760.28/x
  3. Step 3: Cross multiply
    586,082.16x = 807,346.80 × 499,760.28
  4. Step 4: Simplify right side
    586,082.16x = 403,479,862,825.10
  5. Step 5: Solve for x
    x = 403,479,862,825.10/586,082.16
  6. Step 6: Final answer
    x = 688,435.67

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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.