Home / 915,364.71-1,373,047.13-354,399.21

Finding the Fourth Proportional to 915,364.71, 1,373,047.13 and 354,399.21

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Solution

The fourth proportional to 915,364.71, 1,373,047.13 and 354,399.21 is: 531,598.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,364.71 : 1,373,047.13 = 354,399.21 : x
  2. Step 2: Convert to fraction form
    915,364.71/1,373,047.13 = 354,399.21/x
  3. Step 3: Cross multiply
    915,364.71x = 1,373,047.13 × 354,399.21
  4. Step 4: Simplify right side
    915,364.71x = 486,606,819,050.77
  5. Step 5: Solve for x
    x = 486,606,819,050.77/915,364.71
  6. Step 6: Final answer
    x = 531,598.84

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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.