Home / 622,386.40-931,429.20-373,247.20

Finding the Fourth Proportional to 622,386.40, 931,429.20 and 373,247.20

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Solution

The fourth proportional to 622,386.40, 931,429.20 and 373,247.20 is: 558,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,386.40 : 931,429.20 = 373,247.20 : x
  2. Step 2: Convert to fraction form
    622,386.40/931,429.20 = 373,247.20/x
  3. Step 3: Cross multiply
    622,386.40x = 931,429.20 × 373,247.20
  4. Step 4: Simplify right side
    622,386.40x = 347,653,340,898.24
  5. Step 5: Solve for x
    x = 347,653,340,898.24/622,386.40
  6. Step 6: Final answer
    x = 558,581.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.