Home / 708,905.80-1,063,358.70-666,915.40

Finding the Fourth Proportional to 708,905.80, 1,063,358.70 and 666,915.40

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Solution

The fourth proportional to 708,905.80, 1,063,358.70 and 666,915.40 is: 1,000,373.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,905.80 : 1,063,358.70 = 666,915.40 : x
  2. Step 2: Convert to fraction form
    708,905.80/1,063,358.70 = 666,915.40/x
  3. Step 3: Cross multiply
    708,905.80x = 1,063,358.70 × 666,915.40
  4. Step 4: Simplify right side
    708,905.80x = 709,170,292,753.98
  5. Step 5: Solve for x
    x = 709,170,292,753.98/708,905.80
  6. Step 6: Final answer
    x = 1,000,373.10

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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.