Home / 489,370.02-674,941.05-404,339.46

Finding the Fourth Proportional to 489,370.02, 674,941.05 and 404,339.46

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Solution

The fourth proportional to 489,370.02, 674,941.05 and 404,339.46 is: 557,666.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,370.02 : 674,941.05 = 404,339.46 : x
  2. Step 2: Convert to fraction form
    489,370.02/674,941.05 = 404,339.46/x
  3. Step 3: Cross multiply
    489,370.02x = 674,941.05 × 404,339.46
  4. Step 4: Simplify right side
    489,370.02x = 272,905,299,688.83
  5. Step 5: Solve for x
    x = 272,905,299,688.83/489,370.02
  6. Step 6: Final answer
    x = 557,666.57

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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.