Home / 1,223,811.82-1,688,848.13-679,935.93

Finding the Fourth Proportional to 1,223,811.82, 1,688,848.13 and 679,935.93

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Solution

The fourth proportional to 1,223,811.82, 1,688,848.13 and 679,935.93 is: 938,304.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,811.82 : 1,688,848.13 = 679,935.93 : x
  2. Step 2: Convert to fraction form
    1,223,811.82/1,688,848.13 = 679,935.93/x
  3. Step 3: Cross multiply
    1,223,811.82x = 1,688,848.13 × 679,935.93
  4. Step 4: Simplify right side
    1,223,811.82x = 1,148,308,523,900.31
  5. Step 5: Solve for x
    x = 1,148,308,523,900.31/1,223,811.82
  6. Step 6: Final answer
    x = 938,304.82

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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.