Home / 572,894.09-790,616.27-391,985.45

Finding the Fourth Proportional to 572,894.09, 790,616.27 and 391,985.45

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Solution

The fourth proportional to 572,894.09, 790,616.27 and 391,985.45 is: 540,955.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,894.09 : 790,616.27 = 391,985.45 : x
  2. Step 2: Convert to fraction form
    572,894.09/790,616.27 = 391,985.45/x
  3. Step 3: Cross multiply
    572,894.09x = 790,616.27 × 391,985.45
  4. Step 4: Simplify right side
    572,894.09x = 309,910,071,400.15
  5. Step 5: Solve for x
    x = 309,910,071,400.15/572,894.09
  6. Step 6: Final answer
    x = 540,955.26

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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.