Home / 885,938.40-1,328,000.40-435,967.20

Finding the Fourth Proportional to 885,938.40, 1,328,000.40 and 435,967.20

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Solution

The fourth proportional to 885,938.40, 1,328,000.40 and 435,967.20 is: 653,504.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,938.40 : 1,328,000.40 = 435,967.20 : x
  2. Step 2: Convert to fraction form
    885,938.40/1,328,000.40 = 435,967.20/x
  3. Step 3: Cross multiply
    885,938.40x = 1,328,000.40 × 435,967.20
  4. Step 4: Simplify right side
    885,938.40x = 578,964,615,986.88
  5. Step 5: Solve for x
    x = 578,964,615,986.88/885,938.40
  6. Step 6: Final answer
    x = 653,504.37

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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.