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Finding the Fourth Proportional to 662,669.80, 914,823.78 and 448,935.40

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Solution

The fourth proportional to 662,669.80, 914,823.78 and 448,935.40 is: 619,760.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,669.80 : 914,823.78 = 448,935.40 : x
  2. Step 2: Convert to fraction form
    662,669.80/914,823.78 = 448,935.40/x
  3. Step 3: Cross multiply
    662,669.80x = 914,823.78 × 448,935.40
  4. Step 4: Simplify right side
    662,669.80x = 410,696,779,603.81
  5. Step 5: Solve for x
    x = 410,696,779,603.81/662,669.80
  6. Step 6: Final answer
    x = 619,760.82

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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.