Home / 1,187,609.40-1,781,389.17-289,056.15

Finding the Fourth Proportional to 1,187,609.40, 1,781,389.17 and 289,056.15

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Solution

The fourth proportional to 1,187,609.40, 1,781,389.17 and 289,056.15 is: 433,578.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,609.40 : 1,781,389.17 = 289,056.15 : x
  2. Step 2: Convert to fraction form
    1,187,609.40/1,781,389.17 = 289,056.15/x
  3. Step 3: Cross multiply
    1,187,609.40x = 1,781,389.17 × 289,056.15
  4. Step 4: Simplify right side
    1,187,609.40x = 514,921,495,131.90
  5. Step 5: Solve for x
    x = 514,921,495,131.90/1,187,609.40
  6. Step 6: Final answer
    x = 433,578.16

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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.