Home / 949,715.80-1,423,364.10-388,115.80

Finding the Fourth Proportional to 949,715.80, 1,423,364.10 and 388,115.80

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Solution

The fourth proportional to 949,715.80, 1,423,364.10 and 388,115.80 is: 581,679.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,715.80 : 1,423,364.10 = 388,115.80 : x
  2. Step 2: Convert to fraction form
    949,715.80/1,423,364.10 = 388,115.80/x
  3. Step 3: Cross multiply
    949,715.80x = 1,423,364.10 × 388,115.80
  4. Step 4: Simplify right side
    949,715.80x = 552,430,096,362.78
  5. Step 5: Solve for x
    x = 552,430,096,362.78/949,715.80
  6. Step 6: Final answer
    x = 581,679.38

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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.