Home / 990,699.45-1,367,165.55-537,990.45

Finding the Fourth Proportional to 990,699.45, 1,367,165.55 and 537,990.45

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Solution

The fourth proportional to 990,699.45, 1,367,165.55 and 537,990.45 is: 742,426.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,699.45 : 1,367,165.55 = 537,990.45 : x
  2. Step 2: Convert to fraction form
    990,699.45/1,367,165.55 = 537,990.45/x
  3. Step 3: Cross multiply
    990,699.45x = 1,367,165.55 × 537,990.45
  4. Step 4: Simplify right side
    990,699.45x = 735,522,009,469.00
  5. Step 5: Solve for x
    x = 735,522,009,469.00/990,699.45
  6. Step 6: Final answer
    x = 742,426.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.