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Finding the Fourth Proportional to 508,250.16, 701,420.76 and 290,490.88

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Solution

The fourth proportional to 508,250.16, 701,420.76 and 290,490.88 is: 400,897.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,250.16 : 701,420.76 = 290,490.88 : x
  2. Step 2: Convert to fraction form
    508,250.16/701,420.76 = 290,490.88/x
  3. Step 3: Cross multiply
    508,250.16x = 701,420.76 × 290,490.88
  4. Step 4: Simplify right side
    508,250.16x = 203,756,333,822.67
  5. Step 5: Solve for x
    x = 203,756,333,822.67/508,250.16
  6. Step 6: Final answer
    x = 400,897.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.