Home / 1,038,564.90-1,556,680.95-439,424.10

Finding the Fourth Proportional to 1,038,564.90, 1,556,680.95 and 439,424.10

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Solution

The fourth proportional to 1,038,564.90, 1,556,680.95 and 439,424.10 is: 658,642.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,564.90 : 1,556,680.95 = 439,424.10 : x
  2. Step 2: Convert to fraction form
    1,038,564.90/1,556,680.95 = 439,424.10/x
  3. Step 3: Cross multiply
    1,038,564.90x = 1,556,680.95 × 439,424.10
  4. Step 4: Simplify right side
    1,038,564.90x = 684,043,125,440.90
  5. Step 5: Solve for x
    x = 684,043,125,440.90/1,038,564.90
  6. Step 6: Final answer
    x = 658,642.64

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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.