Home / 841,127.40-1,160,740.89-478,543.46

Finding the Fourth Proportional to 841,127.40, 1,160,740.89 and 478,543.46

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Solution

The fourth proportional to 841,127.40, 1,160,740.89 and 478,543.46 is: 660,381.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,127.40 : 1,160,740.89 = 478,543.46 : x
  2. Step 2: Convert to fraction form
    841,127.40/1,160,740.89 = 478,543.46/x
  3. Step 3: Cross multiply
    841,127.40x = 1,160,740.89 × 478,543.46
  4. Step 4: Simplify right side
    841,127.40x = 555,464,955,860.38
  5. Step 5: Solve for x
    x = 555,464,955,860.38/841,127.40
  6. Step 6: Final answer
    x = 660,381.48

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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.