Home / 778,974.30-1,169,117.55-305,999.10

Finding the Fourth Proportional to 778,974.30, 1,169,117.55 and 305,999.10

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Solution

The fourth proportional to 778,974.30, 1,169,117.55 and 305,999.10 is: 459,256.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,974.30 : 1,169,117.55 = 305,999.10 : x
  2. Step 2: Convert to fraction form
    778,974.30/1,169,117.55 = 305,999.10/x
  3. Step 3: Cross multiply
    778,974.30x = 1,169,117.55 × 305,999.10
  4. Step 4: Simplify right side
    778,974.30x = 357,748,918,094.21
  5. Step 5: Solve for x
    x = 357,748,918,094.21/778,974.30
  6. Step 6: Final answer
    x = 459,256.38

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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.