Home / 840,779.29-1,160,300.10-458,830.72

Finding the Fourth Proportional to 840,779.29, 1,160,300.10 and 458,830.72

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Solution

The fourth proportional to 840,779.29, 1,160,300.10 and 458,830.72 is: 633,199.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,779.29 : 1,160,300.10 = 458,830.72 : x
  2. Step 2: Convert to fraction form
    840,779.29/1,160,300.10 = 458,830.72/x
  3. Step 3: Cross multiply
    840,779.29x = 1,160,300.10 × 458,830.72
  4. Step 4: Simplify right side
    840,779.29x = 532,381,330,299.07
  5. Step 5: Solve for x
    x = 532,381,330,299.07/840,779.29
  6. Step 6: Final answer
    x = 633,199.86

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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.