Home / 840,301.32-1,159,713.86-477,779.50

Finding the Fourth Proportional to 840,301.32, 1,159,713.86 and 477,779.50

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Solution

The fourth proportional to 840,301.32, 1,159,713.86 and 477,779.50 is: 659,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,301.32 : 1,159,713.86 = 477,779.50 : x
  2. Step 2: Convert to fraction form
    840,301.32/1,159,713.86 = 477,779.50/x
  3. Step 3: Cross multiply
    840,301.32x = 1,159,713.86 × 477,779.50
  4. Step 4: Simplify right side
    840,301.32x = 554,087,508,173.87
  5. Step 5: Solve for x
    x = 554,087,508,173.87/840,301.32
  6. Step 6: Final answer
    x = 659,391.45

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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.