Home / 1,868,621.40-2,801,895.30-745,421.40

Finding the Fourth Proportional to 1,868,621.40, 2,801,895.30 and 745,421.40

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Solution

The fourth proportional to 1,868,621.40, 2,801,895.30 and 745,421.40 is: 1,117,718.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,621.40 : 2,801,895.30 = 745,421.40 : x
  2. Step 2: Convert to fraction form
    1,868,621.40/2,801,895.30 = 745,421.40/x
  3. Step 3: Cross multiply
    1,868,621.40x = 2,801,895.30 × 745,421.40
  4. Step 4: Simplify right side
    1,868,621.40x = 2,088,592,717,179.42
  5. Step 5: Solve for x
    x = 2,088,592,717,179.42/1,868,621.40
  6. Step 6: Final answer
    x = 1,117,718.50

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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.