Home / 1,038,563.90-1,556,679.45-439,423.10

Finding the Fourth Proportional to 1,038,563.90, 1,556,679.45 and 439,423.10

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Solution

The fourth proportional to 1,038,563.90, 1,556,679.45 and 439,423.10 is: 658,641.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,563.90 : 1,556,679.45 = 439,423.10 : x
  2. Step 2: Convert to fraction form
    1,038,563.90/1,556,679.45 = 439,423.10/x
  3. Step 3: Cross multiply
    1,038,563.90x = 1,556,679.45 × 439,423.10
  4. Step 4: Simplify right side
    1,038,563.90x = 684,040,909,625.30
  5. Step 5: Solve for x
    x = 684,040,909,625.30/1,038,563.90
  6. Step 6: Final answer
    x = 658,641.14

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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.