Home / 1,091,721.40-1,637,582.10-343,670.20

Finding the Fourth Proportional to 1,091,721.40, 1,637,582.10 and 343,670.20

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Solution

The fourth proportional to 1,091,721.40, 1,637,582.10 and 343,670.20 is: 515,505.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,721.40 : 1,637,582.10 = 343,670.20 : x
  2. Step 2: Convert to fraction form
    1,091,721.40/1,637,582.10 = 343,670.20/x
  3. Step 3: Cross multiply
    1,091,721.40x = 1,637,582.10 × 343,670.20
  4. Step 4: Simplify right side
    1,091,721.40x = 562,788,167,823.42
  5. Step 5: Solve for x
    x = 562,788,167,823.42/1,091,721.40
  6. Step 6: Final answer
    x = 515,505.30

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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.