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Finding the Fourth Proportional to 628,970.04, 867,952.59 and 342,489.44

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Solution

The fourth proportional to 628,970.04, 867,952.59 and 342,489.44 is: 472,621.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,970.04 : 867,952.59 = 342,489.44 : x
  2. Step 2: Convert to fraction form
    628,970.04/867,952.59 = 342,489.44/x
  3. Step 3: Cross multiply
    628,970.04x = 867,952.59 × 342,489.44
  4. Step 4: Simplify right side
    628,970.04x = 297,264,596,495.65
  5. Step 5: Solve for x
    x = 297,264,596,495.65/628,970.04
  6. Step 6: Final answer
    x = 472,621.23

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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.