Home / 1,377,205.70-2,065,808.55-430,672.10

Finding the Fourth Proportional to 1,377,205.70, 2,065,808.55 and 430,672.10

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Solution

The fourth proportional to 1,377,205.70, 2,065,808.55 and 430,672.10 is: 646,008.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,205.70 : 2,065,808.55 = 430,672.10 : x
  2. Step 2: Convert to fraction form
    1,377,205.70/2,065,808.55 = 430,672.10/x
  3. Step 3: Cross multiply
    1,377,205.70x = 2,065,808.55 × 430,672.10
  4. Step 4: Simplify right side
    1,377,205.70x = 889,686,106,426.46
  5. Step 5: Solve for x
    x = 889,686,106,426.46/1,377,205.70
  6. Step 6: Final answer
    x = 646,008.15

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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.