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Finding the Fourth Proportional to 549,681.80, 825,041.10 and 339,729.80

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Solution

The fourth proportional to 549,681.80, 825,041.10 and 339,729.80 is: 509,915.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,681.80 : 825,041.10 = 339,729.80 : x
  2. Step 2: Convert to fraction form
    549,681.80/825,041.10 = 339,729.80/x
  3. Step 3: Cross multiply
    549,681.80x = 825,041.10 × 339,729.80
  4. Step 4: Simplify right side
    549,681.80x = 280,291,047,894.78
  5. Step 5: Solve for x
    x = 280,291,047,894.78/549,681.80
  6. Step 6: Final answer
    x = 509,915.10

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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.