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Finding the Fourth Proportional to 478,755.43, 660,662.62 and 260,959.30

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Solution

The fourth proportional to 478,755.43, 660,662.62 and 260,959.30 is: 360,113.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,755.43 : 660,662.62 = 260,959.30 : x
  2. Step 2: Convert to fraction form
    478,755.43/660,662.62 = 260,959.30/x
  3. Step 3: Cross multiply
    478,755.43x = 660,662.62 × 260,959.30
  4. Step 4: Simplify right side
    478,755.43x = 172,406,052,547.31
  5. Step 5: Solve for x
    x = 172,406,052,547.31/478,755.43
  6. Step 6: Final answer
    x = 360,113.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.