Home / 2,148,118.61-3,221,488.74-708,478.37

Finding the Fourth Proportional to 2,148,118.61, 3,221,488.74 and 708,478.37

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Solution

The fourth proportional to 2,148,118.61, 3,221,488.74 and 708,478.37 is: 1,062,490.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148,118.61 : 3,221,488.74 = 708,478.37 : x
  2. Step 2: Convert to fraction form
    2,148,118.61/3,221,488.74 = 708,478.37/x
  3. Step 3: Cross multiply
    2,148,118.61x = 3,221,488.74 × 708,478.37
  4. Step 4: Simplify right side
    2,148,118.61x = 2,282,355,075,381.11
  5. Step 5: Solve for x
    x = 2,282,355,075,381.11/2,148,118.61
  6. Step 6: Final answer
    x = 1,062,490.25

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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.