Home / 778,187.13-1,074,397.94-488,196.19

Finding the Fourth Proportional to 778,187.13, 1,074,397.94 and 488,196.19

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Solution

The fourth proportional to 778,187.13, 1,074,397.94 and 488,196.19 is: 674,024.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,187.13 : 1,074,397.94 = 488,196.19 : x
  2. Step 2: Convert to fraction form
    778,187.13/1,074,397.94 = 488,196.19/x
  3. Step 3: Cross multiply
    778,187.13x = 1,074,397.94 × 488,196.19
  4. Step 4: Simplify right side
    778,187.13x = 524,516,980,851.85
  5. Step 5: Solve for x
    x = 524,516,980,851.85/778,187.13
  6. Step 6: Final answer
    x = 674,024.23

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.