Home / 864,411.95-1,191,779.54-708,789.89

Finding the Fourth Proportional to 864,411.95, 1,191,779.54 and 708,789.89

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Solution

The fourth proportional to 864,411.95, 1,191,779.54 and 708,789.89 is: 977,220.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,411.95 : 1,191,779.54 = 708,789.89 : x
  2. Step 2: Convert to fraction form
    864,411.95/1,191,779.54 = 708,789.89/x
  3. Step 3: Cross multiply
    864,411.95x = 1,191,779.54 × 708,789.89
  4. Step 4: Simplify right side
    864,411.95x = 844,721,289,060.85
  5. Step 5: Solve for x
    x = 844,721,289,060.85/864,411.95
  6. Step 6: Final answer
    x = 977,220.74

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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.