Home / 1,575,988.30-2,174,969.76-878,377.60

Finding the Fourth Proportional to 1,575,988.30, 2,174,969.76 and 878,377.60

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Solution

The fourth proportional to 1,575,988.30, 2,174,969.76 and 878,377.60 is: 1,212,220.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575,988.30 : 2,174,969.76 = 878,377.60 : x
  2. Step 2: Convert to fraction form
    1,575,988.30/2,174,969.76 = 878,377.60/x
  3. Step 3: Cross multiply
    1,575,988.30x = 2,174,969.76 × 878,377.60
  4. Step 4: Simplify right side
    1,575,988.30x = 1,910,444,717,861.38
  5. Step 5: Solve for x
    x = 1,910,444,717,861.38/1,575,988.30
  6. Step 6: Final answer
    x = 1,212,220.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.