Home / 346,688.20-520,032.30-307,289.80

Finding the Fourth Proportional to 346,688.20, 520,032.30 and 307,289.80

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Solution

The fourth proportional to 346,688.20, 520,032.30 and 307,289.80 is: 460,934.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,688.20 : 520,032.30 = 307,289.80 : x
  2. Step 2: Convert to fraction form
    346,688.20/520,032.30 = 307,289.80/x
  3. Step 3: Cross multiply
    346,688.20x = 520,032.30 × 307,289.80
  4. Step 4: Simplify right side
    346,688.20x = 159,800,621,460.54
  5. Step 5: Solve for x
    x = 159,800,621,460.54/346,688.20
  6. Step 6: Final answer
    x = 460,934.70

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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.