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Finding the Fourth Proportional to 616,404.60, 924,606.90 and 380,208.60

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Solution

The fourth proportional to 616,404.60, 924,606.90 and 380,208.60 is: 570,312.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,404.60 : 924,606.90 = 380,208.60 : x
  2. Step 2: Convert to fraction form
    616,404.60/924,606.90 = 380,208.60/x
  3. Step 3: Cross multiply
    616,404.60x = 924,606.90 × 380,208.60
  4. Step 4: Simplify right side
    616,404.60x = 351,543,494,999.34
  5. Step 5: Solve for x
    x = 351,543,494,999.34/616,404.60
  6. Step 6: Final answer
    x = 570,312.90

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1.5x scale

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.