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Finding the Fourth Proportional to 630,449.69, 940,122.07 and 624,763.49

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Solution

The fourth proportional to 630,449.69, 940,122.07 and 624,763.49 is: 931,642.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,449.69 : 940,122.07 = 624,763.49 : x
  2. Step 2: Convert to fraction form
    630,449.69/940,122.07 = 624,763.49/x
  3. Step 3: Cross multiply
    630,449.69x = 940,122.07 × 624,763.49
  4. Step 4: Simplify right side
    630,449.69x = 587,353,939,216.71
  5. Step 5: Solve for x
    x = 587,353,939,216.71/630,449.69
  6. Step 6: Final answer
    x = 931,642.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.