Home / 1,237,938.81-1,857,442.72-669,720.15

Finding the Fourth Proportional to 1,237,938.81, 1,857,442.72 and 669,720.15

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Solution

The fourth proportional to 1,237,938.81, 1,857,442.72 and 669,720.15 is: 1,004,869.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,938.81 : 1,857,442.72 = 669,720.15 : x
  2. Step 2: Convert to fraction form
    1,237,938.81/1,857,442.72 = 669,720.15/x
  3. Step 3: Cross multiply
    1,237,938.81x = 1,857,442.72 × 669,720.15
  4. Step 4: Simplify right side
    1,237,938.81x = 1,243,966,817,054.81
  5. Step 5: Solve for x
    x = 1,243,966,817,054.81/1,237,938.81
  6. Step 6: Final answer
    x = 1,004,869.39

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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.