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Finding the Fourth Proportional to 578,774.77, 866,606.95 and 471,719.90

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Solution

The fourth proportional to 578,774.77, 866,606.95 and 471,719.90 is: 706,312.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,774.77 : 866,606.95 = 471,719.90 : x
  2. Step 2: Convert to fraction form
    578,774.77/866,606.95 = 471,719.90/x
  3. Step 3: Cross multiply
    578,774.77x = 866,606.95 × 471,719.90
  4. Step 4: Simplify right side
    578,774.77x = 408,795,746,549.47
  5. Step 5: Solve for x
    x = 408,795,746,549.47/578,774.77
  6. Step 6: Final answer
    x = 706,312.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.