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Finding the Fourth Proportional to 671,836.78, 927,134.76 and 370,030.78

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Solution

The fourth proportional to 671,836.78, 927,134.76 and 370,030.78 is: 510,642.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,836.78 : 927,134.76 = 370,030.78 : x
  2. Step 2: Convert to fraction form
    671,836.78/927,134.76 = 370,030.78/x
  3. Step 3: Cross multiply
    671,836.78x = 927,134.76 × 370,030.78
  4. Step 4: Simplify right side
    671,836.78x = 343,068,398,873.02
  5. Step 5: Solve for x
    x = 343,068,398,873.02/671,836.78
  6. Step 6: Final answer
    x = 510,642.48

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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.