Home / 555,582.08-766,648.48-310,521.60

Finding the Fourth Proportional to 555,582.08, 766,648.48 and 310,521.60

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Solution

The fourth proportional to 555,582.08, 766,648.48 and 310,521.60 is: 428,489.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,582.08 : 766,648.48 = 310,521.60 : x
  2. Step 2: Convert to fraction form
    555,582.08/766,648.48 = 310,521.60/x
  3. Step 3: Cross multiply
    555,582.08x = 766,648.48 × 310,521.60
  4. Step 4: Simplify right side
    555,582.08x = 238,060,912,647.17
  5. Step 5: Solve for x
    x = 238,060,912,647.17/555,582.08
  6. Step 6: Final answer
    x = 428,489.18

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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.