Home / 518,445.90-777,595.02-163,413.78

Finding the Fourth Proportional to 518,445.90, 777,595.02 and 163,413.78

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Solution

The fourth proportional to 518,445.90, 777,595.02 and 163,413.78 is: 245,097.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,445.90 : 777,595.02 = 163,413.78 : x
  2. Step 2: Convert to fraction form
    518,445.90/777,595.02 = 163,413.78/x
  3. Step 3: Cross multiply
    518,445.90x = 777,595.02 × 163,413.78
  4. Step 4: Simplify right side
    518,445.90x = 127,069,741,527.38
  5. Step 5: Solve for x
    x = 127,069,741,527.38/518,445.90
  6. Step 6: Final answer
    x = 245,097.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.