Home / 1,605,429.20-2,408,139-407,349.20

Finding the Fourth Proportional to 1,605,429.20, 2,408,139 and 407,349.20

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Solution

The fourth proportional to 1,605,429.20, 2,408,139 and 407,349.20 is: 611,022.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,429.20 : 2,408,139 = 407,349.20 : x
  2. Step 2: Convert to fraction form
    1,605,429.20/2,408,139 = 407,349.20/x
  3. Step 3: Cross multiply
    1,605,429.20x = 2,408,139 × 407,349.20
  4. Step 4: Simplify right side
    1,605,429.20x = 980,953,495,138.80
  5. Step 5: Solve for x
    x = 980,953,495,138.80/1,605,429.20
  6. Step 6: Final answer
    x = 611,022.58

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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.