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Finding the Fourth Proportional to 549,038.20, 822,866.10 and 486,830.20

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Solution

The fourth proportional to 549,038.20, 822,866.10 and 486,830.20 is: 729,632.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,038.20 : 822,866.10 = 486,830.20 : x
  2. Step 2: Convert to fraction form
    549,038.20/822,866.10 = 486,830.20/x
  3. Step 3: Cross multiply
    549,038.20x = 822,866.10 × 486,830.20
  4. Step 4: Simplify right side
    549,038.20x = 400,596,068,036.22
  5. Step 5: Solve for x
    x = 400,596,068,036.22/549,038.20
  6. Step 6: Final answer
    x = 729,632.42

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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.