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Finding the Fourth Proportional to 478,547.33, 660,424.73 and 263,687.34

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Solution

The fourth proportional to 478,547.33, 660,424.73 and 263,687.34 is: 363,904.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,547.33 : 660,424.73 = 263,687.34 : x
  2. Step 2: Convert to fraction form
    478,547.33/660,424.73 = 263,687.34/x
  3. Step 3: Cross multiply
    478,547.33x = 660,424.73 × 263,687.34
  4. Step 4: Simplify right side
    478,547.33x = 174,145,639,005.48
  5. Step 5: Solve for x
    x = 174,145,639,005.48/478,547.33
  6. Step 6: Final answer
    x = 363,904.74

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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.