Home / 489,031.60-733,547.40-330,401.20

Finding the Fourth Proportional to 489,031.60, 733,547.40 and 330,401.20

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Solution

The fourth proportional to 489,031.60, 733,547.40 and 330,401.20 is: 495,601.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,031.60 : 733,547.40 = 330,401.20 : x
  2. Step 2: Convert to fraction form
    489,031.60/733,547.40 = 330,401.20/x
  3. Step 3: Cross multiply
    489,031.60x = 733,547.40 × 330,401.20
  4. Step 4: Simplify right side
    489,031.60x = 242,364,941,216.88
  5. Step 5: Solve for x
    x = 242,364,941,216.88/489,031.60
  6. Step 6: Final answer
    x = 495,601.80

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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.