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Finding the Fourth Proportional to 670,381.60, 924,863.20 and 383,747.36

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Solution

The fourth proportional to 670,381.60, 924,863.20 and 383,747.36 is: 529,420.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,381.60 : 924,863.20 = 383,747.36 : x
  2. Step 2: Convert to fraction form
    670,381.60/924,863.20 = 383,747.36/x
  3. Step 3: Cross multiply
    670,381.60x = 924,863.20 × 383,747.36
  4. Step 4: Simplify right side
    670,381.60x = 354,913,811,361.15
  5. Step 5: Solve for x
    x = 354,913,811,361.15/670,381.60
  6. Step 6: Final answer
    x = 529,420.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.