Home / 1,142,402.80-1,712,437.80-668,844.40

Finding the Fourth Proportional to 1,142,402.80, 1,712,437.80 and 668,844.40

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Solution

The fourth proportional to 1,142,402.80, 1,712,437.80 and 668,844.40 is: 1,002,583.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,402.80 : 1,712,437.80 = 668,844.40 : x
  2. Step 2: Convert to fraction form
    1,142,402.80/1,712,437.80 = 668,844.40/x
  3. Step 3: Cross multiply
    1,142,402.80x = 1,712,437.80 × 668,844.40
  4. Step 4: Simplify right side
    1,142,402.80x = 1,145,354,432,878.32
  5. Step 5: Solve for x
    x = 1,145,354,432,878.32/1,142,402.80
  6. Step 6: Final answer
    x = 1,002,583.71

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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.