Home / 1,391,576.13-1,921,545.33-1,046,814.48

Finding the Fourth Proportional to 1,391,576.13, 1,921,545.33 and 1,046,814.48

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Solution

The fourth proportional to 1,391,576.13, 1,921,545.33 and 1,046,814.48 is: 1,445,484.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,576.13 : 1,921,545.33 = 1,046,814.48 : x
  2. Step 2: Convert to fraction form
    1,391,576.13/1,921,545.33 = 1,046,814.48/x
  3. Step 3: Cross multiply
    1,391,576.13x = 1,921,545.33 × 1,046,814.48
  4. Step 4: Simplify right side
    1,391,576.13x = 2,011,501,475,420.38
  5. Step 5: Solve for x
    x = 2,011,501,475,420.38/1,391,576.13
  6. Step 6: Final answer
    x = 1,445,484.32

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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.