Home / 860,854.30-1,291,281.45-577,419.10

Finding the Fourth Proportional to 860,854.30, 1,291,281.45 and 577,419.10

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Solution

The fourth proportional to 860,854.30, 1,291,281.45 and 577,419.10 is: 866,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,854.30 : 1,291,281.45 = 577,419.10 : x
  2. Step 2: Convert to fraction form
    860,854.30/1,291,281.45 = 577,419.10/x
  3. Step 3: Cross multiply
    860,854.30x = 1,291,281.45 × 577,419.10
  4. Step 4: Simplify right side
    860,854.30x = 745,610,572,705.70
  5. Step 5: Solve for x
    x = 745,610,572,705.70/860,854.30
  6. Step 6: Final answer
    x = 866,128.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.