Home / 860,468.80-1,290,703.20-577,033.60

Finding the Fourth Proportional to 860,468.80, 1,290,703.20 and 577,033.60

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Solution

The fourth proportional to 860,468.80, 1,290,703.20 and 577,033.60 is: 865,550.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,468.80 : 1,290,703.20 = 577,033.60 : x
  2. Step 2: Convert to fraction form
    860,468.80/1,290,703.20 = 577,033.60/x
  3. Step 3: Cross multiply
    860,468.80x = 1,290,703.20 × 577,033.60
  4. Step 4: Simplify right side
    860,468.80x = 744,779,114,027.52
  5. Step 5: Solve for x
    x = 744,779,114,027.52/860,468.80
  6. Step 6: Final answer
    x = 865,550.40

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Double scale
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Similar ratio
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1.5x scale

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.