Home / 1,087,279.80-1,630,792.92-288,623.40

Finding the Fourth Proportional to 1,087,279.80, 1,630,792.92 and 288,623.40

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Solution

The fourth proportional to 1,087,279.80, 1,630,792.92 and 288,623.40 is: 432,901.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,279.80 : 1,630,792.92 = 288,623.40 : x
  2. Step 2: Convert to fraction form
    1,087,279.80/1,630,792.92 = 288,623.40/x
  3. Step 3: Cross multiply
    1,087,279.80x = 1,630,792.92 × 288,623.40
  4. Step 4: Simplify right side
    1,087,279.80x = 470,684,997,266.33
  5. Step 5: Solve for x
    x = 470,684,997,266.33/1,087,279.80
  6. Step 6: Final answer
    x = 432,901.45

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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.