Home / 1,218,740.40-1,828,280.70-508,605.66

Finding the Fourth Proportional to 1,218,740.40, 1,828,280.70 and 508,605.66

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Solution

The fourth proportional to 1,218,740.40, 1,828,280.70 and 508,605.66 is: 762,979.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,740.40 : 1,828,280.70 = 508,605.66 : x
  2. Step 2: Convert to fraction form
    1,218,740.40/1,828,280.70 = 508,605.66/x
  3. Step 3: Cross multiply
    1,218,740.40x = 1,828,280.70 × 508,605.66
  4. Step 4: Simplify right side
    1,218,740.40x = 929,873,912,088.76
  5. Step 5: Solve for x
    x = 929,873,912,088.76/1,218,740.40
  6. Step 6: Final answer
    x = 762,979.48

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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.