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Finding the Fourth Proportional to 478,341.36, 660,111.84 and 263,482.20

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Solution

The fourth proportional to 478,341.36, 660,111.84 and 263,482.20 is: 363,605.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,341.36 : 660,111.84 = 263,482.20 : x
  2. Step 2: Convert to fraction form
    478,341.36/660,111.84 = 263,482.20/x
  3. Step 3: Cross multiply
    478,341.36x = 660,111.84 × 263,482.20
  4. Step 4: Simplify right side
    478,341.36x = 173,927,719,849.25
  5. Step 5: Solve for x
    x = 173,927,719,849.25/478,341.36
  6. Step 6: Final answer
    x = 363,605.86

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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.