Home / 758,071.09-1,045,760.43-451,931.75

Finding the Fourth Proportional to 758,071.09, 1,045,760.43 and 451,931.75

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Solution

The fourth proportional to 758,071.09, 1,045,760.43 and 451,931.75 is: 623,440.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,071.09 : 1,045,760.43 = 451,931.75 : x
  2. Step 2: Convert to fraction form
    758,071.09/1,045,760.43 = 451,931.75/x
  3. Step 3: Cross multiply
    758,071.09x = 1,045,760.43 × 451,931.75
  4. Step 4: Simplify right side
    758,071.09x = 472,612,346,209.54
  5. Step 5: Solve for x
    x = 472,612,346,209.54/758,071.09
  6. Step 6: Final answer
    x = 623,440.67

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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.