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Finding the Fourth Proportional to 573,430.06, 791,360.49 and 318,785.50

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Solution

The fourth proportional to 573,430.06, 791,360.49 and 318,785.50 is: 439,939.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,430.06 : 791,360.49 = 318,785.50 : x
  2. Step 2: Convert to fraction form
    573,430.06/791,360.49 = 318,785.50/x
  3. Step 3: Cross multiply
    573,430.06x = 791,360.49 × 318,785.50
  4. Step 4: Simplify right side
    573,430.06x = 252,274,249,484.90
  5. Step 5: Solve for x
    x = 252,274,249,484.90/573,430.06
  6. Step 6: Final answer
    x = 439,939.00

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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.