Home / 778,175.16-1,074,381.53-488,184.32

Finding the Fourth Proportional to 778,175.16, 1,074,381.53 and 488,184.32

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Solution

The fourth proportional to 778,175.16, 1,074,381.53 and 488,184.32 is: 674,007.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,175.16 : 1,074,381.53 = 488,184.32 : x
  2. Step 2: Convert to fraction form
    778,175.16/1,074,381.53 = 488,184.32/x
  3. Step 3: Cross multiply
    778,175.16x = 1,074,381.53 × 488,184.32
  4. Step 4: Simplify right side
    778,175.16x = 524,496,208,830.78
  5. Step 5: Solve for x
    x = 524,496,208,830.78/778,175.16
  6. Step 6: Final answer
    x = 674,007.90

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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.