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Finding the Fourth Proportional to 518,228.91, 714,775.22 and 343,483.08

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Solution

The fourth proportional to 518,228.91, 714,775.22 and 343,483.08 is: 473,754.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,228.91 : 714,775.22 = 343,483.08 : x
  2. Step 2: Convert to fraction form
    518,228.91/714,775.22 = 343,483.08/x
  3. Step 3: Cross multiply
    518,228.91x = 714,775.22 × 343,483.08
  4. Step 4: Simplify right side
    518,228.91x = 245,513,194,073.28
  5. Step 5: Solve for x
    x = 245,513,194,073.28/518,228.91
  6. Step 6: Final answer
    x = 473,754.34

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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.