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Finding the Fourth Proportional to 559,348.40, 772,186.92 and 379,013.36

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Solution

The fourth proportional to 559,348.40, 772,186.92 and 379,013.36 is: 523,232.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,348.40 : 772,186.92 = 379,013.36 : x
  2. Step 2: Convert to fraction form
    559,348.40/772,186.92 = 379,013.36/x
  3. Step 3: Cross multiply
    559,348.40x = 772,186.92 × 379,013.36
  4. Step 4: Simplify right side
    559,348.40x = 292,669,159,097.25
  5. Step 5: Solve for x
    x = 292,669,159,097.25/559,348.40
  6. Step 6: Final answer
    x = 523,232.32

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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.