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Finding the Fourth Proportional to 478,890.24, 660,873.20 and 264,038.80

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Solution

The fourth proportional to 478,890.24, 660,873.20 and 264,038.80 is: 364,376.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,890.24 : 660,873.20 = 264,038.80 : x
  2. Step 2: Convert to fraction form
    478,890.24/660,873.20 = 264,038.80/x
  3. Step 3: Cross multiply
    478,890.24x = 660,873.20 × 264,038.80
  4. Step 4: Simplify right side
    478,890.24x = 174,496,166,680.16
  5. Step 5: Solve for x
    x = 174,496,166,680.16/478,890.24
  6. Step 6: Final answer
    x = 364,376.12

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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.