Home / 628,617.78-867,492.59-342,139.95

Finding the Fourth Proportional to 628,617.78, 867,492.59 and 342,139.95

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Solution

The fourth proportional to 628,617.78, 867,492.59 and 342,139.95 is: 472,153.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,617.78 : 867,492.59 = 342,139.95 : x
  2. Step 2: Convert to fraction form
    628,617.78/867,492.59 = 342,139.95/x
  3. Step 3: Cross multiply
    628,617.78x = 867,492.59 × 342,139.95
  4. Step 4: Simplify right side
    628,617.78x = 296,803,869,657.27
  5. Step 5: Solve for x
    x = 296,803,869,657.27/628,617.78
  6. Step 6: Final answer
    x = 472,153.16

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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.