Home / 646,988.70-970,483.05-173,721.90

Finding the Fourth Proportional to 646,988.70, 970,483.05 and 173,721.90

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Solution

The fourth proportional to 646,988.70, 970,483.05 and 173,721.90 is: 260,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,988.70 : 970,483.05 = 173,721.90 : x
  2. Step 2: Convert to fraction form
    646,988.70/970,483.05 = 173,721.90/x
  3. Step 3: Cross multiply
    646,988.70x = 970,483.05 × 173,721.90
  4. Step 4: Simplify right side
    646,988.70x = 168,594,159,363.80
  5. Step 5: Solve for x
    x = 168,594,159,363.80/646,988.70
  6. Step 6: Final answer
    x = 260,582.85

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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.