Home / 863,430.30-1,295,145.45-548,502.30

Finding the Fourth Proportional to 863,430.30, 1,295,145.45 and 548,502.30

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Solution

The fourth proportional to 863,430.30, 1,295,145.45 and 548,502.30 is: 822,753.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,430.30 : 1,295,145.45 = 548,502.30 : x
  2. Step 2: Convert to fraction form
    863,430.30/1,295,145.45 = 548,502.30/x
  3. Step 3: Cross multiply
    863,430.30x = 1,295,145.45 × 548,502.30
  4. Step 4: Simplify right side
    863,430.30x = 710,390,258,159.54
  5. Step 5: Solve for x
    x = 710,390,258,159.54/863,430.30
  6. Step 6: Final answer
    x = 822,753.45

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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.