Home / 788,807.20-1,183,210.80-488,313.40

Finding the Fourth Proportional to 788,807.20, 1,183,210.80 and 488,313.40

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Solution

The fourth proportional to 788,807.20, 1,183,210.80 and 488,313.40 is: 732,470.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,807.20 : 1,183,210.80 = 488,313.40 : x
  2. Step 2: Convert to fraction form
    788,807.20/1,183,210.80 = 488,313.40/x
  3. Step 3: Cross multiply
    788,807.20x = 1,183,210.80 × 488,313.40
  4. Step 4: Simplify right side
    788,807.20x = 577,777,688,664.72
  5. Step 5: Solve for x
    x = 577,777,688,664.72/788,807.20
  6. Step 6: Final answer
    x = 732,470.10

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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.