Home / 628,551.81-867,384.86-342,065.75

Finding the Fourth Proportional to 628,551.81, 867,384.86 and 342,065.75

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Solution

The fourth proportional to 628,551.81, 867,384.86 and 342,065.75 is: 472,041.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,551.81 : 867,384.86 = 342,065.75 : x
  2. Step 2: Convert to fraction form
    628,551.81/867,384.86 = 342,065.75/x
  3. Step 3: Cross multiply
    628,551.81x = 867,384.86 × 342,065.75
  4. Step 4: Simplify right side
    628,551.81x = 296,702,646,627.29
  5. Step 5: Solve for x
    x = 296,702,646,627.29/628,551.81
  6. Step 6: Final answer
    x = 472,041.67

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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.