Home / 1,255,979.76-1,732,360.60-771,909.16

Finding the Fourth Proportional to 1,255,979.76, 1,732,360.60 and 771,909.16

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Solution

The fourth proportional to 1,255,979.76, 1,732,360.60 and 771,909.16 is: 1,064,686.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,979.76 : 1,732,360.60 = 771,909.16 : x
  2. Step 2: Convert to fraction form
    1,255,979.76/1,732,360.60 = 771,909.16/x
  3. Step 3: Cross multiply
    1,255,979.76x = 1,732,360.60 × 771,909.16
  4. Step 4: Simplify right side
    1,255,979.76x = 1,337,225,015,563.10
  5. Step 5: Solve for x
    x = 1,337,225,015,563.10/1,255,979.76
  6. Step 6: Final answer
    x = 1,064,686.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.