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Finding the Fourth Proportional to 624,449.40, 936,674.10 and 340,030.05

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Solution

The fourth proportional to 624,449.40, 936,674.10 and 340,030.05 is: 510,045.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,449.40 : 936,674.10 = 340,030.05 : x
  2. Step 2: Convert to fraction form
    624,449.40/936,674.10 = 340,030.05/x
  3. Step 3: Cross multiply
    624,449.40x = 936,674.10 × 340,030.05
  4. Step 4: Simplify right side
    624,449.40x = 318,497,341,056.71
  5. Step 5: Solve for x
    x = 318,497,341,056.71/624,449.40
  6. Step 6: Final answer
    x = 510,045.08

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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.