Home / 549,739.20-824,608.80-487,070.40

Finding the Fourth Proportional to 549,739.20, 824,608.80 and 487,070.40

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Solution

The fourth proportional to 549,739.20, 824,608.80 and 487,070.40 is: 730,605.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,739.20 : 824,608.80 = 487,070.40 : x
  2. Step 2: Convert to fraction form
    549,739.20/824,608.80 = 487,070.40/x
  3. Step 3: Cross multiply
    549,739.20x = 824,608.80 × 487,070.40
  4. Step 4: Simplify right side
    549,739.20x = 401,642,538,059.52
  5. Step 5: Solve for x
    x = 401,642,538,059.52/549,739.20
  6. Step 6: Final answer
    x = 730,605.60

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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.