Home / 470,820-706,541.04-221,521.44

Finding the Fourth Proportional to 470,820, 706,541.04 and 221,521.44

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Solution

The fourth proportional to 470,820, 706,541.04 and 221,521.44 is: 332,428.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,820 : 706,541.04 = 221,521.44 : x
  2. Step 2: Convert to fraction form
    470,820/706,541.04 = 221,521.44/x
  3. Step 3: Cross multiply
    470,820x = 706,541.04 × 221,521.44
  4. Step 4: Simplify right side
    470,820x = 156,513,988,599.90
  5. Step 5: Solve for x
    x = 156,513,988,599.90/470,820
  6. Step 6: Final answer
    x = 332,428.50

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1.5x scale

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.