Home / 778,857.30-1,168,285.95-424,563.30

Finding the Fourth Proportional to 778,857.30, 1,168,285.95 and 424,563.30

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Solution

The fourth proportional to 778,857.30, 1,168,285.95 and 424,563.30 is: 636,844.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,857.30 : 1,168,285.95 = 424,563.30 : x
  2. Step 2: Convert to fraction form
    778,857.30/1,168,285.95 = 424,563.30/x
  3. Step 3: Cross multiply
    778,857.30x = 1,168,285.95 × 424,563.30
  4. Step 4: Simplify right side
    778,857.30x = 496,011,338,275.64
  5. Step 5: Solve for x
    x = 496,011,338,275.64/778,857.30
  6. Step 6: Final answer
    x = 636,844.95

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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.