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Finding the Fourth Proportional to 1,871,602.80, 2,804,779.80 and 1,645,904.40

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Solution

The fourth proportional to 1,871,602.80, 2,804,779.80 and 1,645,904.40 is: 2,466,548.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871,602.80 : 2,804,779.80 = 1,645,904.40 : x
  2. Step 2: Convert to fraction form
    1,871,602.80/2,804,779.80 = 1,645,904.40/x
  3. Step 3: Cross multiply
    1,871,602.80x = 2,804,779.80 × 1,645,904.40
  4. Step 4: Simplify right side
    1,871,602.80x = 4,616,399,413,851.12
  5. Step 5: Solve for x
    x = 4,616,399,413,851.12/1,871,602.80
  6. Step 6: Final answer
    x = 2,466,548.68

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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.