Home / 571,428.81-788,412.27-450,193.89

Finding the Fourth Proportional to 571,428.81, 788,412.27 and 450,193.89

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Solution

The fourth proportional to 571,428.81, 788,412.27 and 450,193.89 is: 621,141.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,428.81 : 788,412.27 = 450,193.89 : x
  2. Step 2: Convert to fraction form
    571,428.81/788,412.27 = 450,193.89/x
  3. Step 3: Cross multiply
    571,428.81x = 788,412.27 × 450,193.89
  4. Step 4: Simplify right side
    571,428.81x = 354,938,386,755.03
  5. Step 5: Solve for x
    x = 354,938,386,755.03/571,428.81
  6. Step 6: Final answer
    x = 621,141.92

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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.