Home / 1,218,140.80-1,827,211.20-587,118.40

Finding the Fourth Proportional to 1,218,140.80, 1,827,211.20 and 587,118.40

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Solution

The fourth proportional to 1,218,140.80, 1,827,211.20 and 587,118.40 is: 880,677.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,140.80 : 1,827,211.20 = 587,118.40 : x
  2. Step 2: Convert to fraction form
    1,218,140.80/1,827,211.20 = 587,118.40/x
  3. Step 3: Cross multiply
    1,218,140.80x = 1,827,211.20 × 587,118.40
  4. Step 4: Simplify right side
    1,218,140.80x = 1,072,789,316,206.08
  5. Step 5: Solve for x
    x = 1,072,789,316,206.08/1,218,140.80
  6. Step 6: Final answer
    x = 880,677.60

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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.