Home / 723,616.47-1,085,476.95-191,130.57

Finding the Fourth Proportional to 723,616.47, 1,085,476.95 and 191,130.57

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Solution

The fourth proportional to 723,616.47, 1,085,476.95 and 191,130.57 is: 286,709.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,616.47 : 1,085,476.95 = 191,130.57 : x
  2. Step 2: Convert to fraction form
    723,616.47/1,085,476.95 = 191,130.57/x
  3. Step 3: Cross multiply
    723,616.47x = 1,085,476.95 × 191,130.57
  4. Step 4: Simplify right side
    723,616.47x = 207,467,828,175.36
  5. Step 5: Solve for x
    x = 207,467,828,175.36/723,616.47
  6. Step 6: Final answer
    x = 286,709.65

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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.