Home / 631,402.13-947,111.40-210,678.01

Finding the Fourth Proportional to 631,402.13, 947,111.40 and 210,678.01

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Solution

The fourth proportional to 631,402.13, 947,111.40 and 210,678.01 is: 316,019.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,402.13 : 947,111.40 = 210,678.01 : x
  2. Step 2: Convert to fraction form
    631,402.13/947,111.40 = 210,678.01/x
  3. Step 3: Cross multiply
    631,402.13x = 947,111.40 × 210,678.01
  4. Step 4: Simplify right side
    631,402.13x = 199,535,540,264.76
  5. Step 5: Solve for x
    x = 199,535,540,264.76/631,402.13
  6. Step 6: Final answer
    x = 316,019.75

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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.