Home / 430,384.68-644,828.86-302,028.72

Finding the Fourth Proportional to 430,384.68, 644,828.86 and 302,028.72

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Solution

The fourth proportional to 430,384.68, 644,828.86 and 302,028.72 is: 452,518.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,384.68 : 644,828.86 = 302,028.72 : x
  2. Step 2: Convert to fraction form
    430,384.68/644,828.86 = 302,028.72/x
  3. Step 3: Cross multiply
    430,384.68x = 644,828.86 × 302,028.72
  4. Step 4: Simplify right side
    430,384.68x = 194,756,835,204.86
  5. Step 5: Solve for x
    x = 194,756,835,204.86/430,384.68
  6. Step 6: Final answer
    x = 452,518.05

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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.