Home / 518,975.18-715,549.45-426,772.25

Finding the Fourth Proportional to 518,975.18, 715,549.45 and 426,772.25

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Solution

The fourth proportional to 518,975.18, 715,549.45 and 426,772.25 is: 588,422.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,975.18 : 715,549.45 = 426,772.25 : x
  2. Step 2: Convert to fraction form
    518,975.18/715,549.45 = 426,772.25/x
  3. Step 3: Cross multiply
    518,975.18x = 715,549.45 × 426,772.25
  4. Step 4: Simplify right side
    518,975.18x = 305,376,649,484.71
  5. Step 5: Solve for x
    x = 305,376,649,484.71/518,975.18
  6. Step 6: Final answer
    x = 588,422.45

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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.