Home / 1,223,548.32-1,688,449.74-679,718.30

Finding the Fourth Proportional to 1,223,548.32, 1,688,449.74 and 679,718.30

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Solution

The fourth proportional to 1,223,548.32, 1,688,449.74 and 679,718.30 is: 937,985.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,548.32 : 1,688,449.74 = 679,718.30 : x
  2. Step 2: Convert to fraction form
    1,223,548.32/1,688,449.74 = 679,718.30/x
  3. Step 3: Cross multiply
    1,223,548.32x = 1,688,449.74 × 679,718.30
  4. Step 4: Simplify right side
    1,223,548.32x = 1,147,670,178,465.99
  5. Step 5: Solve for x
    x = 1,147,670,178,465.99/1,223,548.32
  6. Step 6: Final answer
    x = 937,985.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.