Home / 927,088.71-1,390,848.72-287,358.51

Finding the Fourth Proportional to 927,088.71, 1,390,848.72 and 287,358.51

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Solution

The fourth proportional to 927,088.71, 1,390,848.72 and 287,358.51 is: 431,104.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,088.71 : 1,390,848.72 = 287,358.51 : x
  2. Step 2: Convert to fraction form
    927,088.71/1,390,848.72 = 287,358.51/x
  3. Step 3: Cross multiply
    927,088.71x = 1,390,848.72 × 287,358.51
  4. Step 4: Simplify right side
    927,088.71x = 399,672,215,814.61
  5. Step 5: Solve for x
    x = 399,672,215,814.61/927,088.71
  6. Step 6: Final answer
    x = 431,104.61

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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.