Home / 841,129.05-1,160,743.11-478,545.11

Finding the Fourth Proportional to 841,129.05, 1,160,743.11 and 478,545.11

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Solution

The fourth proportional to 841,129.05, 1,160,743.11 and 478,545.11 is: 660,383.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,129.05 : 1,160,743.11 = 478,545.11 : x
  2. Step 2: Convert to fraction form
    841,129.05/1,160,743.11 = 478,545.11/x
  3. Step 3: Cross multiply
    841,129.05x = 1,160,743.11 × 478,545.11
  4. Step 4: Simplify right side
    841,129.05x = 555,467,939,256.69
  5. Step 5: Solve for x
    x = 555,467,939,256.69/841,129.05
  6. Step 6: Final answer
    x = 660,383.73

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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.