Home / 2,921,415.40-4,382,123.10-926,871.40

Finding the Fourth Proportional to 2,921,415.40, 4,382,123.10 and 926,871.40

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Solution

The fourth proportional to 2,921,415.40, 4,382,123.10 and 926,871.40 is: 1,390,307.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921,415.40 : 4,382,123.10 = 926,871.40 : x
  2. Step 2: Convert to fraction form
    2,921,415.40/4,382,123.10 = 926,871.40/x
  3. Step 3: Cross multiply
    2,921,415.40x = 4,382,123.10 × 926,871.40
  4. Step 4: Simplify right side
    2,921,415.40x = 4,061,664,572,669.34
  5. Step 5: Solve for x
    x = 4,061,664,572,669.34/2,921,415.40
  6. Step 6: Final answer
    x = 1,390,307.10

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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.