Home / 1,016,421.60-1,525,237.20-385,399.20

Finding the Fourth Proportional to 1,016,421.60, 1,525,237.20 and 385,399.20

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Solution

The fourth proportional to 1,016,421.60, 1,525,237.20 and 385,399.20 is: 578,328.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016,421.60 : 1,525,237.20 = 385,399.20 : x
  2. Step 2: Convert to fraction form
    1,016,421.60/1,525,237.20 = 385,399.20/x
  3. Step 3: Cross multiply
    1,016,421.60x = 1,525,237.20 × 385,399.20
  4. Step 4: Simplify right side
    1,016,421.60x = 587,825,196,690.24
  5. Step 5: Solve for x
    x = 587,825,196,690.24/1,016,421.60
  6. Step 6: Final answer
    x = 578,328.12

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1.5x scale

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.