Home / 860,590.60-1,187,598.14-478,609.18

Finding the Fourth Proportional to 860,590.60, 1,187,598.14 and 478,609.18

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Solution

The fourth proportional to 860,590.60, 1,187,598.14 and 478,609.18 is: 660,471.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,590.60 : 1,187,598.14 = 478,609.18 : x
  2. Step 2: Convert to fraction form
    860,590.60/1,187,598.14 = 478,609.18/x
  3. Step 3: Cross multiply
    860,590.60x = 1,187,598.14 × 478,609.18
  4. Step 4: Simplify right side
    860,590.60x = 568,395,371,954.93
  5. Step 5: Solve for x
    x = 568,395,371,954.93/860,590.60
  6. Step 6: Final answer
    x = 660,471.28

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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.