Home / 1,336,509.60-2,005,223.40-390,019.20

Finding the Fourth Proportional to 1,336,509.60, 2,005,223.40 and 390,019.20

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Solution

The fourth proportional to 1,336,509.60, 2,005,223.40 and 390,019.20 is: 585,162.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,509.60 : 2,005,223.40 = 390,019.20 : x
  2. Step 2: Convert to fraction form
    1,336,509.60/2,005,223.40 = 390,019.20/x
  3. Step 3: Cross multiply
    1,336,509.60x = 2,005,223.40 × 390,019.20
  4. Step 4: Simplify right side
    1,336,509.60x = 782,075,626,289.28
  5. Step 5: Solve for x
    x = 782,075,626,289.28/1,336,509.60
  6. Step 6: Final answer
    x = 585,162.75

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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.