Home / 788,306.40-1,183,042.80-521,978.40

Finding the Fourth Proportional to 788,306.40, 1,183,042.80 and 521,978.40

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Solution

The fourth proportional to 788,306.40, 1,183,042.80 and 521,978.40 is: 783,353.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,306.40 : 1,183,042.80 = 521,978.40 : x
  2. Step 2: Convert to fraction form
    788,306.40/1,183,042.80 = 521,978.40/x
  3. Step 3: Cross multiply
    788,306.40x = 1,183,042.80 × 521,978.40
  4. Step 4: Simplify right side
    788,306.40x = 617,522,787,875.52
  5. Step 5: Solve for x
    x = 617,522,787,875.52/788,306.40
  6. Step 6: Final answer
    x = 783,353.77

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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.