Home / 867,060.53-1,298,908.39-638,942.30

Finding the Fourth Proportional to 867,060.53, 1,298,908.39 and 638,942.30

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Solution

The fourth proportional to 867,060.53, 1,298,908.39 and 638,942.30 is: 957,173.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,060.53 : 1,298,908.39 = 638,942.30 : x
  2. Step 2: Convert to fraction form
    867,060.53/1,298,908.39 = 638,942.30/x
  3. Step 3: Cross multiply
    867,060.53x = 1,298,908.39 × 638,942.30
  4. Step 4: Simplify right side
    867,060.53x = 829,927,518,521.61
  5. Step 5: Solve for x
    x = 829,927,518,521.61/867,060.53
  6. Step 6: Final answer
    x = 957,173.68

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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.