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Finding the Fourth Proportional to 634,763.04, 876,029.78 and 348,338.96

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Solution

The fourth proportional to 634,763.04, 876,029.78 and 348,338.96 is: 480,738.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,763.04 : 876,029.78 = 348,338.96 : x
  2. Step 2: Convert to fraction form
    634,763.04/876,029.78 = 348,338.96/x
  3. Step 3: Cross multiply
    634,763.04x = 876,029.78 × 348,338.96
  4. Step 4: Simplify right side
    634,763.04x = 305,155,302,494.23
  5. Step 5: Solve for x
    x = 305,155,302,494.23/634,763.04
  6. Step 6: Final answer
    x = 480,738.93

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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.