Home / 935,443.20-1,403,164.80-921,446.40

Finding the Fourth Proportional to 935,443.20, 1,403,164.80 and 921,446.40

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Solution

The fourth proportional to 935,443.20, 1,403,164.80 and 921,446.40 is: 1,382,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,443.20 : 1,403,164.80 = 921,446.40 : x
  2. Step 2: Convert to fraction form
    935,443.20/1,403,164.80 = 921,446.40/x
  3. Step 3: Cross multiply
    935,443.20x = 1,403,164.80 × 921,446.40
  4. Step 4: Simplify right side
    935,443.20x = 1,292,941,153,566.72
  5. Step 5: Solve for x
    x = 1,292,941,153,566.72/935,443.20
  6. Step 6: Final answer
    x = 1,382,169.60

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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.