Home / 459,070.20-688,605.84-143,528.76

Finding the Fourth Proportional to 459,070.20, 688,605.84 and 143,528.76

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Solution

The fourth proportional to 459,070.20, 688,605.84 and 143,528.76 is: 215,293.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,070.20 : 688,605.84 = 143,528.76 : x
  2. Step 2: Convert to fraction form
    459,070.20/688,605.84 = 143,528.76/x
  3. Step 3: Cross multiply
    459,070.20x = 688,605.84 × 143,528.76
  4. Step 4: Simplify right side
    459,070.20x = 98,834,742,343.96
  5. Step 5: Solve for x
    x = 98,834,742,343.96/459,070.20
  6. Step 6: Final answer
    x = 215,293.31

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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.