Home / 429,983.40-644,975.10-403,411.35

Finding the Fourth Proportional to 429,983.40, 644,975.10 and 403,411.35

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Solution

The fourth proportional to 429,983.40, 644,975.10 and 403,411.35 is: 605,117.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,983.40 : 644,975.10 = 403,411.35 : x
  2. Step 2: Convert to fraction form
    429,983.40/644,975.10 = 403,411.35/x
  3. Step 3: Cross multiply
    429,983.40x = 644,975.10 × 403,411.35
  4. Step 4: Simplify right side
    429,983.40x = 260,190,275,807.39
  5. Step 5: Solve for x
    x = 260,190,275,807.39/429,983.40
  6. Step 6: Final answer
    x = 605,117.03

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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.