Home / 947,727.30-1,421,665.74-316,643.34

Finding the Fourth Proportional to 947,727.30, 1,421,665.74 and 316,643.34

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Solution

The fourth proportional to 947,727.30, 1,421,665.74 and 316,643.34 is: 474,990.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,727.30 : 1,421,665.74 = 316,643.34 : x
  2. Step 2: Convert to fraction form
    947,727.30/1,421,665.74 = 316,643.34/x
  3. Step 3: Cross multiply
    947,727.30x = 1,421,665.74 × 316,643.34
  4. Step 4: Simplify right side
    947,727.30x = 450,160,988,277.17
  5. Step 5: Solve for x
    x = 450,160,988,277.17/947,727.30
  6. Step 6: Final answer
    x = 474,990.00

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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.