Home / 1,288,830.40-1,931,344.80-934,590.40

Finding the Fourth Proportional to 1,288,830.40, 1,931,344.80 and 934,590.40

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Solution

The fourth proportional to 1,288,830.40, 1,931,344.80 and 934,590.40 is: 1,400,507.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,830.40 : 1,931,344.80 = 934,590.40 : x
  2. Step 2: Convert to fraction form
    1,288,830.40/1,931,344.80 = 934,590.40/x
  3. Step 3: Cross multiply
    1,288,830.40x = 1,931,344.80 × 934,590.40
  4. Step 4: Simplify right side
    1,288,830.40x = 1,805,016,309,169.92
  5. Step 5: Solve for x
    x = 1,805,016,309,169.92/1,288,830.40
  6. Step 6: Final answer
    x = 1,400,507.24

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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.