Home / 958,907.10-1,438,879.05-426,510.30

Finding the Fourth Proportional to 958,907.10, 1,438,879.05 and 426,510.30

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Solution

The fourth proportional to 958,907.10, 1,438,879.05 and 426,510.30 is: 639,996.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,907.10 : 1,438,879.05 = 426,510.30 : x
  2. Step 2: Convert to fraction form
    958,907.10/1,438,879.05 = 426,510.30/x
  3. Step 3: Cross multiply
    958,907.10x = 1,438,879.05 × 426,510.30
  4. Step 4: Simplify right side
    958,907.10x = 613,696,735,279.22
  5. Step 5: Solve for x
    x = 613,696,735,279.22/958,907.10
  6. Step 6: Final answer
    x = 639,996.03

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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.