Home / 621,502.30-931,981.75-313,564.91

Finding the Fourth Proportional to 621,502.30, 931,981.75 and 313,564.91

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Solution

The fourth proportional to 621,502.30, 931,981.75 and 313,564.91 is: 470,210.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,502.30 : 931,981.75 = 313,564.91 : x
  2. Step 2: Convert to fraction form
    621,502.30/931,981.75 = 313,564.91/x
  3. Step 3: Cross multiply
    621,502.30x = 931,981.75 × 313,564.91
  4. Step 4: Simplify right side
    621,502.30x = 292,236,768,116.57
  5. Step 5: Solve for x
    x = 292,236,768,116.57/621,502.30
  6. Step 6: Final answer
    x = 470,210.28

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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.