Home / 841,127.30-1,160,740.70-478,543.35

Finding the Fourth Proportional to 841,127.30, 1,160,740.70 and 478,543.35

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Solution

The fourth proportional to 841,127.30, 1,160,740.70 and 478,543.35 is: 660,381.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,127.30 : 1,160,740.70 = 478,543.35 : x
  2. Step 2: Convert to fraction form
    841,127.30/1,160,740.70 = 478,543.35/x
  3. Step 3: Cross multiply
    841,127.30x = 1,160,740.70 × 478,543.35
  4. Step 4: Simplify right side
    841,127.30x = 555,464,743,568.48
  5. Step 5: Solve for x
    x = 555,464,743,568.48/841,127.30
  6. Step 6: Final answer
    x = 660,381.31

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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.