Home / 429,870.28-645,303.60-230,579.92

Finding the Fourth Proportional to 429,870.28, 645,303.60 and 230,579.92

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Solution

The fourth proportional to 429,870.28, 645,303.60 and 230,579.92 is: 346,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,870.28 : 645,303.60 = 230,579.92 : x
  2. Step 2: Convert to fraction form
    429,870.28/645,303.60 = 230,579.92/x
  3. Step 3: Cross multiply
    429,870.28x = 645,303.60 × 230,579.92
  4. Step 4: Simplify right side
    429,870.28x = 148,794,052,463.71
  5. Step 5: Solve for x
    x = 148,794,052,463.71/429,870.28
  6. Step 6: Final answer
    x = 346,137.10

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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.