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Finding the Fourth Proportional to 486,023.70, 728,671.05 and 249,536.10

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Solution

The fourth proportional to 486,023.70, 728,671.05 and 249,536.10 is: 374,117.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,023.70 : 728,671.05 = 249,536.10 : x
  2. Step 2: Convert to fraction form
    486,023.70/728,671.05 = 249,536.10/x
  3. Step 3: Cross multiply
    486,023.70x = 728,671.05 × 249,536.10
  4. Step 4: Simplify right side
    486,023.70x = 181,829,731,999.91
  5. Step 5: Solve for x
    x = 181,829,731,999.91/486,023.70
  6. Step 6: Final answer
    x = 374,117.01

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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.