Home / 990,798.08-1,367,295.36-538,085.12

Finding the Fourth Proportional to 990,798.08, 1,367,295.36 and 538,085.12

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Solution

The fourth proportional to 990,798.08, 1,367,295.36 and 538,085.12 is: 742,554.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,798.08 : 1,367,295.36 = 538,085.12 : x
  2. Step 2: Convert to fraction form
    990,798.08/1,367,295.36 = 538,085.12/x
  3. Step 3: Cross multiply
    990,798.08x = 1,367,295.36 × 538,085.12
  4. Step 4: Simplify right side
    990,798.08x = 735,721,287,861.04
  5. Step 5: Solve for x
    x = 735,721,287,861.04/990,798.08
  6. Step 6: Final answer
    x = 742,554.21

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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.