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Finding the Fourth Proportional to 542,047.20, 747,999.93 and 297,030.51

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Solution

The fourth proportional to 542,047.20, 747,999.93 and 297,030.51 is: 409,888.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,047.20 : 747,999.93 = 297,030.51 : x
  2. Step 2: Convert to fraction form
    542,047.20/747,999.93 = 297,030.51/x
  3. Step 3: Cross multiply
    542,047.20x = 747,999.93 × 297,030.51
  4. Step 4: Simplify right side
    542,047.20x = 222,178,800,687.86
  5. Step 5: Solve for x
    x = 222,178,800,687.86/542,047.20
  6. Step 6: Final answer
    x = 409,888.29

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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.