Home / 472,423.20-651,947.92-257,564.80

Finding the Fourth Proportional to 472,423.20, 651,947.92 and 257,564.80

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Solution

The fourth proportional to 472,423.20, 651,947.92 and 257,564.80 is: 355,441.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,423.20 : 651,947.92 = 257,564.80 : x
  2. Step 2: Convert to fraction form
    472,423.20/651,947.92 = 257,564.80/x
  3. Step 3: Cross multiply
    472,423.20x = 651,947.92 × 257,564.80
  4. Step 4: Simplify right side
    472,423.20x = 167,918,835,625.22
  5. Step 5: Solve for x
    x = 167,918,835,625.22/472,423.20
  6. Step 6: Final answer
    x = 355,441.55

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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.