Home / 990,417.78-1,366,785.09-537,709.86

Finding the Fourth Proportional to 990,417.78, 1,366,785.09 and 537,709.86

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Solution

The fourth proportional to 990,417.78, 1,366,785.09 and 537,709.86 is: 742,044.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,417.78 : 1,366,785.09 = 537,709.86 : x
  2. Step 2: Convert to fraction form
    990,417.78/1,366,785.09 = 537,709.86/x
  3. Step 3: Cross multiply
    990,417.78x = 1,366,785.09 × 537,709.86
  4. Step 4: Simplify right side
    990,417.78x = 734,933,819,393.99
  5. Step 5: Solve for x
    x = 734,933,819,393.99/990,417.78
  6. Step 6: Final answer
    x = 742,044.25

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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.