Home / 857,890.95-1,285,626.81-473,812.97

Finding the Fourth Proportional to 857,890.95, 1,285,626.81 and 473,812.97

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Solution

The fourth proportional to 857,890.95, 1,285,626.81 and 473,812.97 is: 710,051.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,890.95 : 1,285,626.81 = 473,812.97 : x
  2. Step 2: Convert to fraction form
    857,890.95/1,285,626.81 = 473,812.97/x
  3. Step 3: Cross multiply
    857,890.95x = 1,285,626.81 × 473,812.97
  4. Step 4: Simplify right side
    857,890.95x = 609,146,654,789.62
  5. Step 5: Solve for x
    x = 609,146,654,789.62/857,890.95
  6. Step 6: Final answer
    x = 710,051.39

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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.