Home / 1,238,477.40-1,857,716.10-899,929.80

Finding the Fourth Proportional to 1,238,477.40, 1,857,716.10 and 899,929.80

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Solution

The fourth proportional to 1,238,477.40, 1,857,716.10 and 899,929.80 is: 1,349,894.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,477.40 : 1,857,716.10 = 899,929.80 : x
  2. Step 2: Convert to fraction form
    1,238,477.40/1,857,716.10 = 899,929.80/x
  3. Step 3: Cross multiply
    1,238,477.40x = 1,857,716.10 × 899,929.80
  4. Step 4: Simplify right side
    1,238,477.40x = 1,671,814,078,329.78
  5. Step 5: Solve for x
    x = 1,671,814,078,329.78/1,238,477.40
  6. Step 6: Final answer
    x = 1,349,894.70

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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.