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Finding the Fourth Proportional to 628,394.16, 941,401.95 and 371,457.51

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Solution

The fourth proportional to 628,394.16, 941,401.95 and 371,457.51 is: 556,483.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,394.16 : 941,401.95 = 371,457.51 : x
  2. Step 2: Convert to fraction form
    628,394.16/941,401.95 = 371,457.51/x
  3. Step 3: Cross multiply
    628,394.16x = 941,401.95 × 371,457.51
  4. Step 4: Simplify right side
    628,394.16x = 349,690,819,332.92
  5. Step 5: Solve for x
    x = 349,690,819,332.92/628,394.16
  6. Step 6: Final answer
    x = 556,483.24

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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.