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Finding the Fourth Proportional to 495,008.60, 742,512.90 and 435,959.60

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Solution

The fourth proportional to 495,008.60, 742,512.90 and 435,959.60 is: 653,939.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,008.60 : 742,512.90 = 435,959.60 : x
  2. Step 2: Convert to fraction form
    495,008.60/742,512.90 = 435,959.60/x
  3. Step 3: Cross multiply
    495,008.60x = 742,512.90 × 435,959.60
  4. Step 4: Simplify right side
    495,008.60x = 323,705,626,878.84
  5. Step 5: Solve for x
    x = 323,705,626,878.84/495,008.60
  6. Step 6: Final answer
    x = 653,939.40

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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.