Home / 840,301.71-1,159,714.38-477,779.88

Finding the Fourth Proportional to 840,301.71, 1,159,714.38 and 477,779.88

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Solution

The fourth proportional to 840,301.71, 1,159,714.38 and 477,779.88 is: 659,391.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,301.71 : 1,159,714.38 = 477,779.88 : x
  2. Step 2: Convert to fraction form
    840,301.71/1,159,714.38 = 477,779.88/x
  3. Step 3: Cross multiply
    840,301.71x = 1,159,714.38 × 477,779.88
  4. Step 4: Simplify right side
    840,301.71x = 554,088,197,310.67
  5. Step 5: Solve for x
    x = 554,088,197,310.67/840,301.71
  6. Step 6: Final answer
    x = 659,391.97

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1.5x scale

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.