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Finding the Fourth Proportional to 602,386.40, 831,285.50 and 344,260.46

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Solution

The fourth proportional to 602,386.40, 831,285.50 and 344,260.46 is: 475,075.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,386.40 : 831,285.50 = 344,260.46 : x
  2. Step 2: Convert to fraction form
    602,386.40/831,285.50 = 344,260.46/x
  3. Step 3: Cross multiply
    602,386.40x = 831,285.50 × 344,260.46
  4. Step 4: Simplify right side
    602,386.40x = 286,178,722,743.60
  5. Step 5: Solve for x
    x = 286,178,722,743.60/602,386.40
  6. Step 6: Final answer
    x = 475,075.01

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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.