Home / 519,281.60-778,834.08-145,217.60

Finding the Fourth Proportional to 519,281.60, 778,834.08 and 145,217.60

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Solution

The fourth proportional to 519,281.60, 778,834.08 and 145,217.60 is: 217,801.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,281.60 : 778,834.08 = 145,217.60 : x
  2. Step 2: Convert to fraction form
    519,281.60/778,834.08 = 145,217.60/x
  3. Step 3: Cross multiply
    519,281.60x = 778,834.08 × 145,217.60
  4. Step 4: Simplify right side
    519,281.60x = 113,100,415,895.81
  5. Step 5: Solve for x
    x = 113,100,415,895.81/519,281.60
  6. Step 6: Final answer
    x = 217,801.70

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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.