Home / 628,478.92-867,319.14-342,017.50

Finding the Fourth Proportional to 628,478.92, 867,319.14 and 342,017.50

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Solution

The fourth proportional to 628,478.92, 867,319.14 and 342,017.50 is: 471,994.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,478.92 : 867,319.14 = 342,017.50 : x
  2. Step 2: Convert to fraction form
    628,478.92/867,319.14 = 342,017.50/x
  3. Step 3: Cross multiply
    628,478.92x = 867,319.14 × 342,017.50
  4. Step 4: Simplify right side
    628,478.92x = 296,638,323,964.95
  5. Step 5: Solve for x
    x = 296,638,323,964.95/628,478.92
  6. Step 6: Final answer
    x = 471,994.07

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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.