Home / 559,783.73-772,472.40-318,032.75

Finding the Fourth Proportional to 559,783.73, 772,472.40 and 318,032.75

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Solution

The fourth proportional to 559,783.73, 772,472.40 and 318,032.75 is: 438,868.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,783.73 : 772,472.40 = 318,032.75 : x
  2. Step 2: Convert to fraction form
    559,783.73/772,472.40 = 318,032.75/x
  3. Step 3: Cross multiply
    559,783.73x = 772,472.40 × 318,032.75
  4. Step 4: Simplify right side
    559,783.73x = 245,671,521,671.10
  5. Step 5: Solve for x
    x = 245,671,521,671.10/559,783.73
  6. Step 6: Final answer
    x = 438,868.64

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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.