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Finding the Fourth Proportional to 542,505.47, 748,851.30 and 370,300.18

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Solution

The fourth proportional to 542,505.47, 748,851.30 and 370,300.18 is: 511,146.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,505.47 : 748,851.30 = 370,300.18 : x
  2. Step 2: Convert to fraction form
    542,505.47/748,851.30 = 370,300.18/x
  3. Step 3: Cross multiply
    542,505.47x = 748,851.30 × 370,300.18
  4. Step 4: Simplify right side
    542,505.47x = 277,299,771,183.23
  5. Step 5: Solve for x
    x = 277,299,771,183.23/542,505.47
  6. Step 6: Final answer
    x = 511,146.50

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1.5x scale

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.