Home / 1,139,966.60-1,709,949.90-298,603.40

Finding the Fourth Proportional to 1,139,966.60, 1,709,949.90 and 298,603.40

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Solution

The fourth proportional to 1,139,966.60, 1,709,949.90 and 298,603.40 is: 447,905.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,966.60 : 1,709,949.90 = 298,603.40 : x
  2. Step 2: Convert to fraction form
    1,139,966.60/1,709,949.90 = 298,603.40/x
  3. Step 3: Cross multiply
    1,139,966.60x = 1,709,949.90 × 298,603.40
  4. Step 4: Simplify right side
    1,139,966.60x = 510,596,853,969.66
  5. Step 5: Solve for x
    x = 510,596,853,969.66/1,139,966.60
  6. Step 6: Final answer
    x = 447,905.10

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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.