Home / 628,561.28-867,397.88-342,075.20

Finding the Fourth Proportional to 628,561.28, 867,397.88 and 342,075.20

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Solution

The fourth proportional to 628,561.28, 867,397.88 and 342,075.20 is: 472,054.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,561.28 : 867,397.88 = 342,075.20 : x
  2. Step 2: Convert to fraction form
    628,561.28/867,397.88 = 342,075.20/x
  3. Step 3: Cross multiply
    628,561.28x = 867,397.88 × 342,075.20
  4. Step 4: Simplify right side
    628,561.28x = 296,715,303,280.58
  5. Step 5: Solve for x
    x = 296,715,303,280.58/628,561.28
  6. Step 6: Final answer
    x = 472,054.69

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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.