Home / 778,702.18-1,168,181.76-238,945.12

Finding the Fourth Proportional to 778,702.18, 1,168,181.76 and 238,945.12

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Solution

The fourth proportional to 778,702.18, 1,168,181.76 and 238,945.12 is: 358,457.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,702.18 : 1,168,181.76 = 238,945.12 : x
  2. Step 2: Convert to fraction form
    778,702.18/1,168,181.76 = 238,945.12/x
  3. Step 3: Cross multiply
    778,702.18x = 1,168,181.76 × 238,945.12
  4. Step 4: Simplify right side
    778,702.18x = 279,131,330,825.01
  5. Step 5: Solve for x
    x = 279,131,330,825.01/778,702.18
  6. Step 6: Final answer
    x = 358,457.11

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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.