Home / 648,023.40-972,035.10-577,164.60

Finding the Fourth Proportional to 648,023.40, 972,035.10 and 577,164.60

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Solution

The fourth proportional to 648,023.40, 972,035.10 and 577,164.60 is: 865,746.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,023.40 : 972,035.10 = 577,164.60 : x
  2. Step 2: Convert to fraction form
    648,023.40/972,035.10 = 577,164.60/x
  3. Step 3: Cross multiply
    648,023.40x = 972,035.10 × 577,164.60
  4. Step 4: Simplify right side
    648,023.40x = 561,024,249,677.46
  5. Step 5: Solve for x
    x = 561,024,249,677.46/648,023.40
  6. Step 6: Final answer
    x = 865,746.90

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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.