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Finding the Fourth Proportional to 575,875.20, 863,804.70 and 260,331.60

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Solution

The fourth proportional to 575,875.20, 863,804.70 and 260,331.60 is: 390,493.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,875.20 : 863,804.70 = 260,331.60 : x
  2. Step 2: Convert to fraction form
    575,875.20/863,804.70 = 260,331.60/x
  3. Step 3: Cross multiply
    575,875.20x = 863,804.70 × 260,331.60
  4. Step 4: Simplify right side
    575,875.20x = 224,875,659,638.52
  5. Step 5: Solve for x
    x = 224,875,659,638.52/575,875.20
  6. Step 6: Final answer
    x = 390,493.74

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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.