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Finding the Fourth Proportional to 665,153.60, 997,730.40 and 610,041.20

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Solution

The fourth proportional to 665,153.60, 997,730.40 and 610,041.20 is: 915,061.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,153.60 : 997,730.40 = 610,041.20 : x
  2. Step 2: Convert to fraction form
    665,153.60/997,730.40 = 610,041.20/x
  3. Step 3: Cross multiply
    665,153.60x = 997,730.40 × 610,041.20
  4. Step 4: Simplify right side
    665,153.60x = 608,656,650,492.48
  5. Step 5: Solve for x
    x = 608,656,650,492.48/665,153.60
  6. Step 6: Final answer
    x = 915,061.80

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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.