Home / 1,012,172.16-1,520,124.48-803,153.28

Finding the Fourth Proportional to 1,012,172.16, 1,520,124.48 and 803,153.28

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Solution

The fourth proportional to 1,012,172.16, 1,520,124.48 and 803,153.28 is: 1,206,210.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,172.16 : 1,520,124.48 = 803,153.28 : x
  2. Step 2: Convert to fraction form
    1,012,172.16/1,520,124.48 = 803,153.28/x
  3. Step 3: Cross multiply
    1,012,172.16x = 1,520,124.48 × 803,153.28
  4. Step 4: Simplify right side
    1,012,172.16x = 1,220,892,962,120.29
  5. Step 5: Solve for x
    x = 1,220,892,962,120.29/1,012,172.16
  6. Step 6: Final answer
    x = 1,206,210.77

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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.