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Finding the Fourth Proportional to 648,187.20, 970,531.20 and 508,219.20

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Solution

The fourth proportional to 648,187.20, 970,531.20 and 508,219.20 is: 760,957.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,187.20 : 970,531.20 = 508,219.20 : x
  2. Step 2: Convert to fraction form
    648,187.20/970,531.20 = 508,219.20/x
  3. Step 3: Cross multiply
    648,187.20x = 970,531.20 × 508,219.20
  4. Step 4: Simplify right side
    648,187.20x = 493,242,590,039.04
  5. Step 5: Solve for x
    x = 493,242,590,039.04/648,187.20
  6. Step 6: Final answer
    x = 760,957.00

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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.