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Finding the Fourth Proportional to 521,491.46, 719,598.70 and 292,016.84

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Solution

The fourth proportional to 521,491.46, 719,598.70 and 292,016.84 is: 402,949.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,491.46 : 719,598.70 = 292,016.84 : x
  2. Step 2: Convert to fraction form
    521,491.46/719,598.70 = 292,016.84/x
  3. Step 3: Cross multiply
    521,491.46x = 719,598.70 × 292,016.84
  4. Step 4: Simplify right side
    521,491.46x = 210,134,938,442.11
  5. Step 5: Solve for x
    x = 210,134,938,442.11/521,491.46
  6. Step 6: Final answer
    x = 402,949.91

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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.