Home / 778,356.72-1,167,535.08-357,986.16

Finding the Fourth Proportional to 778,356.72, 1,167,535.08 and 357,986.16

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Solution

The fourth proportional to 778,356.72, 1,167,535.08 and 357,986.16 is: 536,979.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,356.72 : 1,167,535.08 = 357,986.16 : x
  2. Step 2: Convert to fraction form
    778,356.72/1,167,535.08 = 357,986.16/x
  3. Step 3: Cross multiply
    778,356.72x = 1,167,535.08 × 357,986.16
  4. Step 4: Simplify right side
    778,356.72x = 417,961,399,954.49
  5. Step 5: Solve for x
    x = 417,961,399,954.49/778,356.72
  6. Step 6: Final answer
    x = 536,979.24

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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.