Home / 1,226,907-1,840,528.17-428,071.23

Finding the Fourth Proportional to 1,226,907, 1,840,528.17 and 428,071.23

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Solution

The fourth proportional to 1,226,907, 1,840,528.17 and 428,071.23 is: 642,165.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,907 : 1,840,528.17 = 428,071.23 : x
  2. Step 2: Convert to fraction form
    1,226,907/1,840,528.17 = 428,071.23/x
  3. Step 3: Cross multiply
    1,226,907x = 1,840,528.17 × 428,071.23
  4. Step 4: Simplify right side
    1,226,907x = 787,877,157,581.55
  5. Step 5: Solve for x
    x = 787,877,157,581.55/1,226,907
  6. Step 6: Final answer
    x = 642,165.35

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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.