Home / 935,999.80-1,403,999.70-917,337.40

Finding the Fourth Proportional to 935,999.80, 1,403,999.70 and 917,337.40

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Solution

The fourth proportional to 935,999.80, 1,403,999.70 and 917,337.40 is: 1,376,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,999.80 : 1,403,999.70 = 917,337.40 : x
  2. Step 2: Convert to fraction form
    935,999.80/1,403,999.70 = 917,337.40/x
  3. Step 3: Cross multiply
    935,999.80x = 1,403,999.70 × 917,337.40
  4. Step 4: Simplify right side
    935,999.80x = 1,287,941,434,398.78
  5. Step 5: Solve for x
    x = 1,287,941,434,398.78/935,999.80
  6. Step 6: Final answer
    x = 1,376,006.10

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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.