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Finding the Fourth Proportional to 536,938.72, 803,655.16 and 394,746.48

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Solution

The fourth proportional to 536,938.72, 803,655.16 and 394,746.48 is: 590,831.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,938.72 : 803,655.16 = 394,746.48 : x
  2. Step 2: Convert to fraction form
    536,938.72/803,655.16 = 394,746.48/x
  3. Step 3: Cross multiply
    536,938.72x = 803,655.16 × 394,746.48
  4. Step 4: Simplify right side
    536,938.72x = 317,240,045,543.84
  5. Step 5: Solve for x
    x = 317,240,045,543.84/536,938.72
  6. Step 6: Final answer
    x = 590,831.01

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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.