Home / 709,724.40-1,064,716.20-289,042.80

Finding the Fourth Proportional to 709,724.40, 1,064,716.20 and 289,042.80

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Solution

The fourth proportional to 709,724.40, 1,064,716.20 and 289,042.80 is: 433,616.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,724.40 : 1,064,716.20 = 289,042.80 : x
  2. Step 2: Convert to fraction form
    709,724.40/1,064,716.20 = 289,042.80/x
  3. Step 3: Cross multiply
    709,724.40x = 1,064,716.20 × 289,042.80
  4. Step 4: Simplify right side
    709,724.40x = 307,748,551,653.36
  5. Step 5: Solve for x
    x = 307,748,551,653.36/709,724.40
  6. Step 6: Final answer
    x = 433,616.98

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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.