Home / 1,490,839.40-2,236,550.70-637,909.40

Finding the Fourth Proportional to 1,490,839.40, 2,236,550.70 and 637,909.40

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Solution

The fourth proportional to 1,490,839.40, 2,236,550.70 and 637,909.40 is: 956,988.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,839.40 : 2,236,550.70 = 637,909.40 : x
  2. Step 2: Convert to fraction form
    1,490,839.40/2,236,550.70 = 637,909.40/x
  3. Step 3: Cross multiply
    1,490,839.40x = 2,236,550.70 × 637,909.40
  4. Step 4: Simplify right side
    1,490,839.40x = 1,426,716,715,106.58
  5. Step 5: Solve for x
    x = 1,426,716,715,106.58/1,490,839.40
  6. Step 6: Final answer
    x = 956,988.87

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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.