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Finding the Fourth Proportional to 496,520.40, 745,088.40 and 260,032.80

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Solution

The fourth proportional to 496,520.40, 745,088.40 and 260,032.80 is: 390,210.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,520.40 : 745,088.40 = 260,032.80 : x
  2. Step 2: Convert to fraction form
    496,520.40/745,088.40 = 260,032.80/x
  3. Step 3: Cross multiply
    496,520.40x = 745,088.40 × 260,032.80
  4. Step 4: Simplify right side
    496,520.40x = 193,747,422,899.52
  5. Step 5: Solve for x
    x = 193,747,422,899.52/496,520.40
  6. Step 6: Final answer
    x = 390,210.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.