Home / 990,518.30-1,366,920.71-537,809.30

Finding the Fourth Proportional to 990,518.30, 1,366,920.71 and 537,809.30

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Solution

The fourth proportional to 990,518.30, 1,366,920.71 and 537,809.30 is: 742,179.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,518.30 : 1,366,920.71 = 537,809.30 : x
  2. Step 2: Convert to fraction form
    990,518.30/1,366,920.71 = 537,809.30/x
  3. Step 3: Cross multiply
    990,518.30x = 1,366,920.71 × 537,809.30
  4. Step 4: Simplify right side
    990,518.30x = 735,142,670,200.60
  5. Step 5: Solve for x
    x = 735,142,670,200.60/990,518.30
  6. Step 6: Final answer
    x = 742,179.80

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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.