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Finding the Fourth Proportional to 549,609.30, 824,413.95 and 455,130.90

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Solution

The fourth proportional to 549,609.30, 824,413.95 and 455,130.90 is: 682,696.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,609.30 : 824,413.95 = 455,130.90 : x
  2. Step 2: Convert to fraction form
    549,609.30/824,413.95 = 455,130.90/x
  3. Step 3: Cross multiply
    549,609.30x = 824,413.95 × 455,130.90
  4. Step 4: Simplify right side
    549,609.30x = 375,216,263,036.06
  5. Step 5: Solve for x
    x = 375,216,263,036.06/549,609.30
  6. Step 6: Final answer
    x = 682,696.35

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Similar ratio
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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.