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Finding the Fourth Proportional to 456,520.95, 630,134.55 and 295,371.90

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Solution

The fourth proportional to 456,520.95, 630,134.55 and 295,371.90 is: 407,700.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,520.95 : 630,134.55 = 295,371.90 : x
  2. Step 2: Convert to fraction form
    456,520.95/630,134.55 = 295,371.90/x
  3. Step 3: Cross multiply
    456,520.95x = 630,134.55 × 295,371.90
  4. Step 4: Simplify right side
    456,520.95x = 186,124,039,289.15
  5. Step 5: Solve for x
    x = 186,124,039,289.15/456,520.95
  6. Step 6: Final answer
    x = 407,700.98

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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.