Home / 778,084.08-1,167,162.64-378,248.16

Finding the Fourth Proportional to 778,084.08, 1,167,162.64 and 378,248.16

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Solution

The fourth proportional to 778,084.08, 1,167,162.64 and 378,248.16 is: 567,389.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,084.08 : 1,167,162.64 = 378,248.16 : x
  2. Step 2: Convert to fraction form
    778,084.08/1,167,162.64 = 378,248.16/x
  3. Step 3: Cross multiply
    778,084.08x = 1,167,162.64 × 378,248.16
  4. Step 4: Simplify right side
    778,084.08x = 441,477,121,000.74
  5. Step 5: Solve for x
    x = 441,477,121,000.74/778,084.08
  6. Step 6: Final answer
    x = 567,389.99

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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.