Home / 479,673.75-719,445.02-142,766.40

Finding the Fourth Proportional to 479,673.75, 719,445.02 and 142,766.40

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Solution

The fourth proportional to 479,673.75, 719,445.02 and 142,766.40 is: 214,130.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,673.75 : 719,445.02 = 142,766.40 : x
  2. Step 2: Convert to fraction form
    479,673.75/719,445.02 = 142,766.40/x
  3. Step 3: Cross multiply
    479,673.75x = 719,445.02 × 142,766.40
  4. Step 4: Simplify right side
    479,673.75x = 102,712,574,789.50
  5. Step 5: Solve for x
    x = 102,712,574,789.50/479,673.75
  6. Step 6: Final answer
    x = 214,130.07

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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.