Home / 559,789.48-772,480.33-318,038.50

Finding the Fourth Proportional to 559,789.48, 772,480.33 and 318,038.50

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Solution

The fourth proportional to 559,789.48, 772,480.33 and 318,038.50 is: 438,876.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,789.48 : 772,480.33 = 318,038.50 : x
  2. Step 2: Convert to fraction form
    559,789.48/772,480.33 = 318,038.50/x
  3. Step 3: Cross multiply
    559,789.48x = 772,480.33 × 318,038.50
  4. Step 4: Simplify right side
    559,789.48x = 245,678,485,432.71
  5. Step 5: Solve for x
    x = 245,678,485,432.71/559,789.48
  6. Step 6: Final answer
    x = 438,876.57

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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.