Home / 430,822.89-644,434.33-302,730.20

Finding the Fourth Proportional to 430,822.89, 644,434.33 and 302,730.20

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Solution

The fourth proportional to 430,822.89, 644,434.33 and 302,730.20 is: 452,830.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,822.89 : 644,434.33 = 302,730.20 : x
  2. Step 2: Convert to fraction form
    430,822.89/644,434.33 = 302,730.20/x
  3. Step 3: Cross multiply
    430,822.89x = 644,434.33 × 302,730.20
  4. Step 4: Simplify right side
    430,822.89x = 195,089,733,607.77
  5. Step 5: Solve for x
    x = 195,089,733,607.77/430,822.89
  6. Step 6: Final answer
    x = 452,830.47

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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.