Home / 740,397.30-1,021,755.06-434,478.81

Finding the Fourth Proportional to 740,397.30, 1,021,755.06 and 434,478.81

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Solution

The fourth proportional to 740,397.30, 1,021,755.06 and 434,478.81 is: 599,584.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,397.30 : 1,021,755.06 = 434,478.81 : x
  2. Step 2: Convert to fraction form
    740,397.30/1,021,755.06 = 434,478.81/x
  3. Step 3: Cross multiply
    740,397.30x = 1,021,755.06 × 434,478.81
  4. Step 4: Simplify right side
    740,397.30x = 443,930,922,580.28
  5. Step 5: Solve for x
    x = 443,930,922,580.28/740,397.30
  6. Step 6: Final answer
    x = 599,584.74

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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.