Home / 1,429,400.16-1,972,482.84-784,816.20

Finding the Fourth Proportional to 1,429,400.16, 1,972,482.84 and 784,816.20

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Solution

The fourth proportional to 1,429,400.16, 1,972,482.84 and 784,816.20 is: 1,082,997.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,400.16 : 1,972,482.84 = 784,816.20 : x
  2. Step 2: Convert to fraction form
    1,429,400.16/1,972,482.84 = 784,816.20/x
  3. Step 3: Cross multiply
    1,429,400.16x = 1,972,482.84 × 784,816.20
  4. Step 4: Simplify right side
    1,429,400.16x = 1,548,036,487,054.01
  5. Step 5: Solve for x
    x = 1,548,036,487,054.01/1,429,400.16
  6. Step 6: Final answer
    x = 1,082,997.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.