Home / 763,715.60-1,145,573.40-642,064.40

Finding the Fourth Proportional to 763,715.60, 1,145,573.40 and 642,064.40

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Solution

The fourth proportional to 763,715.60, 1,145,573.40 and 642,064.40 is: 963,096.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,715.60 : 1,145,573.40 = 642,064.40 : x
  2. Step 2: Convert to fraction form
    763,715.60/1,145,573.40 = 642,064.40/x
  3. Step 3: Cross multiply
    763,715.60x = 1,145,573.40 × 642,064.40
  4. Step 4: Simplify right side
    763,715.60x = 735,531,897,726.96
  5. Step 5: Solve for x
    x = 735,531,897,726.96/763,715.60
  6. Step 6: Final answer
    x = 963,096.60

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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.