Home / 1,187,341.14-1,781,031.15-345,939.06

Finding the Fourth Proportional to 1,187,341.14, 1,781,031.15 and 345,939.06

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Solution

The fourth proportional to 1,187,341.14, 1,781,031.15 and 345,939.06 is: 518,914.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,341.14 : 1,781,031.15 = 345,939.06 : x
  2. Step 2: Convert to fraction form
    1,187,341.14/1,781,031.15 = 345,939.06/x
  3. Step 3: Cross multiply
    1,187,341.14x = 1,781,031.15 × 345,939.06
  4. Step 4: Simplify right side
    1,187,341.14x = 616,128,241,861.72
  5. Step 5: Solve for x
    x = 616,128,241,861.72/1,187,341.14
  6. Step 6: Final answer
    x = 518,914.25

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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.