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Finding the Fourth Proportional to 634,507.78, 875,622 and 348,030.22

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Solution

The fourth proportional to 634,507.78, 875,622 and 348,030.22 is: 480,282.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,507.78 : 875,622 = 348,030.22 : x
  2. Step 2: Convert to fraction form
    634,507.78/875,622 = 348,030.22/x
  3. Step 3: Cross multiply
    634,507.78x = 875,622 × 348,030.22
  4. Step 4: Simplify right side
    634,507.78x = 304,742,917,296.84
  5. Step 5: Solve for x
    x = 304,742,917,296.84/634,507.78
  6. Step 6: Final answer
    x = 480,282.40

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