Home / 549,643.20-823,984.80-212,913.60

Finding the Fourth Proportional to 549,643.20, 823,984.80 and 212,913.60

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Solution

The fourth proportional to 549,643.20, 823,984.80 and 212,913.60 is: 319,184.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,643.20 : 823,984.80 = 212,913.60 : x
  2. Step 2: Convert to fraction form
    549,643.20/823,984.80 = 212,913.60/x
  3. Step 3: Cross multiply
    549,643.20x = 823,984.80 × 212,913.60
  4. Step 4: Simplify right side
    549,643.20x = 175,437,570,113.28
  5. Step 5: Solve for x
    x = 175,437,570,113.28/549,643.20
  6. Step 6: Final answer
    x = 319,184.46

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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.