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Finding the Fourth Proportional to 542,003.04, 812,711.34 and 430,401.24

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Solution

The fourth proportional to 542,003.04, 812,711.34 and 430,401.24 is: 645,369.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,003.04 : 812,711.34 = 430,401.24 : x
  2. Step 2: Convert to fraction form
    542,003.04/812,711.34 = 430,401.24/x
  3. Step 3: Cross multiply
    542,003.04x = 812,711.34 × 430,401.24
  4. Step 4: Simplify right side
    542,003.04x = 349,791,968,498.06
  5. Step 5: Solve for x
    x = 349,791,968,498.06/542,003.04
  6. Step 6: Final answer
    x = 645,369.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.