Home / 860,417.40-1,187,327.24-478,435.98

Finding the Fourth Proportional to 860,417.40, 1,187,327.24 and 478,435.98

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Solution

The fourth proportional to 860,417.40, 1,187,327.24 and 478,435.98 is: 660,214.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,417.40 : 1,187,327.24 = 478,435.98 : x
  2. Step 2: Convert to fraction form
    860,417.40/1,187,327.24 = 478,435.98/x
  3. Step 3: Cross multiply
    860,417.40x = 1,187,327.24 × 478,435.98
  4. Step 4: Simplify right side
    860,417.40x = 568,060,063,321.28
  5. Step 5: Solve for x
    x = 568,060,063,321.28/860,417.40
  6. Step 6: Final answer
    x = 660,214.53

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Double scale
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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.