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Finding the Fourth Proportional to 575,430.40, 863,145.60 and 260,502.40

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Solution

The fourth proportional to 575,430.40, 863,145.60 and 260,502.40 is: 390,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,430.40 : 863,145.60 = 260,502.40 : x
  2. Step 2: Convert to fraction form
    575,430.40/863,145.60 = 260,502.40/x
  3. Step 3: Cross multiply
    575,430.40x = 863,145.60 × 260,502.40
  4. Step 4: Simplify right side
    575,430.40x = 224,851,500,349.44
  5. Step 5: Solve for x
    x = 224,851,500,349.44/575,430.40
  6. Step 6: Final answer
    x = 390,753.60

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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.