Home / 788,330.40-1,183,078.80-522,002.40

Finding the Fourth Proportional to 788,330.40, 1,183,078.80 and 522,002.40

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Solution

The fourth proportional to 788,330.40, 1,183,078.80 and 522,002.40 is: 783,389.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,330.40 : 1,183,078.80 = 522,002.40 : x
  2. Step 2: Convert to fraction form
    788,330.40/1,183,078.80 = 522,002.40/x
  3. Step 3: Cross multiply
    788,330.40x = 1,183,078.80 × 522,002.40
  4. Step 4: Simplify right side
    788,330.40x = 617,569,972,989.12
  5. Step 5: Solve for x
    x = 617,569,972,989.12/788,330.40
  6. Step 6: Final answer
    x = 783,389.77

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Double scale
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Similar ratio
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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.