Home / 646,989.20-970,483.80-173,722.40

Finding the Fourth Proportional to 646,989.20, 970,483.80 and 173,722.40

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Solution

The fourth proportional to 646,989.20, 970,483.80 and 173,722.40 is: 260,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,989.20 : 970,483.80 = 173,722.40 : x
  2. Step 2: Convert to fraction form
    646,989.20/970,483.80 = 173,722.40/x
  3. Step 3: Cross multiply
    646,989.20x = 970,483.80 × 173,722.40
  4. Step 4: Simplify right side
    646,989.20x = 168,594,774,897.12
  5. Step 5: Solve for x
    x = 168,594,774,897.12/646,989.20
  6. Step 6: Final answer
    x = 260,583.60

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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.