Home / 915,711.40-1,373,696.70-284,559.40

Finding the Fourth Proportional to 915,711.40, 1,373,696.70 and 284,559.40

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Solution

The fourth proportional to 915,711.40, 1,373,696.70 and 284,559.40 is: 426,879.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,711.40 : 1,373,696.70 = 284,559.40 : x
  2. Step 2: Convert to fraction form
    915,711.40/1,373,696.70 = 284,559.40/x
  3. Step 3: Cross multiply
    915,711.40x = 1,373,696.70 × 284,559.40
  4. Step 4: Simplify right side
    915,711.40x = 390,898,308,733.98
  5. Step 5: Solve for x
    x = 390,898,308,733.98/915,711.40
  6. Step 6: Final answer
    x = 426,879.37

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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.