Home / 631,557.17-871,538.63-345,071.10

Finding the Fourth Proportional to 631,557.17, 871,538.63 and 345,071.10

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Solution

The fourth proportional to 631,557.17, 871,538.63 and 345,071.10 is: 476,192.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,557.17 : 871,538.63 = 345,071.10 : x
  2. Step 2: Convert to fraction form
    631,557.17/871,538.63 = 345,071.10/x
  3. Step 3: Cross multiply
    631,557.17x = 871,538.63 × 345,071.10
  4. Step 4: Simplify right side
    631,557.17x = 300,742,792,021.24
  5. Step 5: Solve for x
    x = 300,742,792,021.24/631,557.17
  6. Step 6: Final answer
    x = 476,192.51

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1.5x scale

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.