Home / 806,506.10-1,209,762.54-326,743.20

Finding the Fourth Proportional to 806,506.10, 1,209,762.54 and 326,743.20

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Solution

The fourth proportional to 806,506.10, 1,209,762.54 and 326,743.20 is: 490,116.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,506.10 : 1,209,762.54 = 326,743.20 : x
  2. Step 2: Convert to fraction form
    806,506.10/1,209,762.54 = 326,743.20/x
  3. Step 3: Cross multiply
    806,506.10x = 1,209,762.54 × 326,743.20
  4. Step 4: Simplify right side
    806,506.10x = 395,281,683,559.73
  5. Step 5: Solve for x
    x = 395,281,683,559.73/806,506.10
  6. Step 6: Final answer
    x = 490,116.17

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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.