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Finding the Fourth Proportional to 671,840.16, 927,139.43 and 370,034.16

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Solution

The fourth proportional to 671,840.16, 927,139.43 and 370,034.16 is: 510,647.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,840.16 : 927,139.43 = 370,034.16 : x
  2. Step 2: Convert to fraction form
    671,840.16/927,139.43 = 370,034.16/x
  3. Step 3: Cross multiply
    671,840.16x = 927,139.43 × 370,034.16
  4. Step 4: Simplify right side
    671,840.16x = 343,073,257,631.24
  5. Step 5: Solve for x
    x = 343,073,257,631.24/671,840.16
  6. Step 6: Final answer
    x = 510,647.14

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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.