Home / 876,857.40-1,315,631.70-344,287.80

Finding the Fourth Proportional to 876,857.40, 1,315,631.70 and 344,287.80

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Solution

The fourth proportional to 876,857.40, 1,315,631.70 and 344,287.80 is: 516,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,857.40 : 1,315,631.70 = 344,287.80 : x
  2. Step 2: Convert to fraction form
    876,857.40/1,315,631.70 = 344,287.80/x
  3. Step 3: Cross multiply
    876,857.40x = 1,315,631.70 × 344,287.80
  4. Step 4: Simplify right side
    876,857.40x = 452,955,943,603.26
  5. Step 5: Solve for x
    x = 452,955,943,603.26/876,857.40
  6. Step 6: Final answer
    x = 516,567.40

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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.