Home / 913,331.07-1,370,136.72-662,505.45

Finding the Fourth Proportional to 913,331.07, 1,370,136.72 and 662,505.45

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Solution

The fourth proportional to 913,331.07, 1,370,136.72 and 662,505.45 is: 993,859.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,331.07 : 1,370,136.72 = 662,505.45 : x
  2. Step 2: Convert to fraction form
    913,331.07/1,370,136.72 = 662,505.45/x
  3. Step 3: Cross multiply
    913,331.07x = 1,370,136.72 × 662,505.45
  4. Step 4: Simplify right side
    913,331.07x = 907,723,044,245.12
  5. Step 5: Solve for x
    x = 907,723,044,245.12/913,331.07
  6. Step 6: Final answer
    x = 993,859.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.