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Finding the Fourth Proportional to 573,510.80, 791,424.16 and 315,385.56

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Solution

The fourth proportional to 573,510.80, 791,424.16 and 315,385.56 is: 435,220.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,510.80 : 791,424.16 = 315,385.56 : x
  2. Step 2: Convert to fraction form
    573,510.80/791,424.16 = 315,385.56/x
  3. Step 3: Cross multiply
    573,510.80x = 791,424.16 × 315,385.56
  4. Step 4: Simplify right side
    573,510.80x = 249,603,751,899.13
  5. Step 5: Solve for x
    x = 249,603,751,899.13/573,510.80
  6. Step 6: Final answer
    x = 435,220.67

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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.