Home / 711,135.02-1,066,703.56-290,410.90

Finding the Fourth Proportional to 711,135.02, 1,066,703.56 and 290,410.90

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Solution

The fourth proportional to 711,135.02, 1,066,703.56 and 290,410.90 is: 435,616.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,135.02 : 1,066,703.56 = 290,410.90 : x
  2. Step 2: Convert to fraction form
    711,135.02/1,066,703.56 = 290,410.90/x
  3. Step 3: Cross multiply
    711,135.02x = 1,066,703.56 × 290,410.90
  4. Step 4: Simplify right side
    711,135.02x = 309,782,340,892.80
  5. Step 5: Solve for x
    x = 309,782,340,892.80/711,135.02
  6. Step 6: Final answer
    x = 435,616.77

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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.