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Finding the Fourth Proportional to 1,402,654.06, 1,935,565.50 and 790,828.66

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Solution

The fourth proportional to 1,402,654.06, 1,935,565.50 and 790,828.66 is: 1,091,288.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,654.06 : 1,935,565.50 = 790,828.66 : x
  2. Step 2: Convert to fraction form
    1,402,654.06/1,935,565.50 = 790,828.66/x
  3. Step 3: Cross multiply
    1,402,654.06x = 1,935,565.50 × 790,828.66
  4. Step 4: Simplify right side
    1,402,654.06x = 1,530,700,670,707.23
  5. Step 5: Solve for x
    x = 1,530,700,670,707.23/1,402,654.06
  6. Step 6: Final answer
    x = 1,091,288.80

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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.