Home / 519,122.16-778,684.68-145,148.40

Finding the Fourth Proportional to 519,122.16, 778,684.68 and 145,148.40

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Solution

The fourth proportional to 519,122.16, 778,684.68 and 145,148.40 is: 217,723.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,122.16 : 778,684.68 = 145,148.40 : x
  2. Step 2: Convert to fraction form
    519,122.16/778,684.68 = 145,148.40/x
  3. Step 3: Cross multiply
    519,122.16x = 778,684.68 × 145,148.40
  4. Step 4: Simplify right side
    519,122.16x = 113,024,835,406.51
  5. Step 5: Solve for x
    x = 113,024,835,406.51/519,122.16
  6. Step 6: Final answer
    x = 217,723.00

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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.