Home / 648,120.30-972,180.45-589,022.70

Finding the Fourth Proportional to 648,120.30, 972,180.45 and 589,022.70

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Solution

The fourth proportional to 648,120.30, 972,180.45 and 589,022.70 is: 883,534.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,120.30 : 972,180.45 = 589,022.70 : x
  2. Step 2: Convert to fraction form
    648,120.30/972,180.45 = 589,022.70/x
  3. Step 3: Cross multiply
    648,120.30x = 972,180.45 × 589,022.70
  4. Step 4: Simplify right side
    648,120.30x = 572,636,353,546.22
  5. Step 5: Solve for x
    x = 572,636,353,546.22/648,120.30
  6. Step 6: Final answer
    x = 883,534.05

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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.