Home / 907,715.57-1,252,656.79-499,855.34

Finding the Fourth Proportional to 907,715.57, 1,252,656.79 and 499,855.34

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Solution

The fourth proportional to 907,715.57, 1,252,656.79 and 499,855.34 is: 689,805.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,715.57 : 1,252,656.79 = 499,855.34 : x
  2. Step 2: Convert to fraction form
    907,715.57/1,252,656.79 = 499,855.34/x
  3. Step 3: Cross multiply
    907,715.57x = 1,252,656.79 × 499,855.34
  4. Step 4: Simplify right side
    907,715.57x = 626,147,187,550.76
  5. Step 5: Solve for x
    x = 626,147,187,550.76/907,715.57
  6. Step 6: Final answer
    x = 689,805.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.