Home / 1,401,208.80-2,101,521.60-390,069.60

Finding the Fourth Proportional to 1,401,208.80, 2,101,521.60 and 390,069.60

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Solution

The fourth proportional to 1,401,208.80, 2,101,521.60 and 390,069.60 is: 585,023.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401,208.80 : 2,101,521.60 = 390,069.60 : x
  2. Step 2: Convert to fraction form
    1,401,208.80/2,101,521.60 = 390,069.60/x
  3. Step 3: Cross multiply
    1,401,208.80x = 2,101,521.60 × 390,069.60
  4. Step 4: Simplify right side
    1,401,208.80x = 819,739,689,903.36
  5. Step 5: Solve for x
    x = 819,739,689,903.36/1,401,208.80
  6. Step 6: Final answer
    x = 585,023.22

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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.