Home / 1,245,031.65-1,869,297.08-772,639.65

Finding the Fourth Proportional to 1,245,031.65, 1,869,297.08 and 772,639.65

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Solution

The fourth proportional to 1,245,031.65, 1,869,297.08 and 772,639.65 is: 1,160,045.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,031.65 : 1,869,297.08 = 772,639.65 : x
  2. Step 2: Convert to fraction form
    1,245,031.65/1,869,297.08 = 772,639.65/x
  3. Step 3: Cross multiply
    1,245,031.65x = 1,869,297.08 × 772,639.65
  4. Step 4: Simplify right side
    1,245,031.65x = 1,444,293,037,774.02
  5. Step 5: Solve for x
    x = 1,444,293,037,774.02/1,245,031.65
  6. Step 6: Final answer
    x = 1,160,045.24

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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.