Home / 760,314.12-1,048,819.62-488,424.78

Finding the Fourth Proportional to 760,314.12, 1,048,819.62 and 488,424.78

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Solution

The fourth proportional to 760,314.12, 1,048,819.62 and 488,424.78 is: 673,760.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,314.12 : 1,048,819.62 = 488,424.78 : x
  2. Step 2: Convert to fraction form
    760,314.12/1,048,819.62 = 488,424.78/x
  3. Step 3: Cross multiply
    760,314.12x = 1,048,819.62 × 488,424.78
  4. Step 4: Simplify right side
    760,314.12x = 512,269,492,158.18
  5. Step 5: Solve for x
    x = 512,269,492,158.18/760,314.12
  6. Step 6: Final answer
    x = 673,760.33

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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.