Home / 1,042,909.80-1,564,364.70-669,661.80

Finding the Fourth Proportional to 1,042,909.80, 1,564,364.70 and 669,661.80

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Solution

The fourth proportional to 1,042,909.80, 1,564,364.70 and 669,661.80 is: 1,004,492.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,909.80 : 1,564,364.70 = 669,661.80 : x
  2. Step 2: Convert to fraction form
    1,042,909.80/1,564,364.70 = 669,661.80/x
  3. Step 3: Cross multiply
    1,042,909.80x = 1,564,364.70 × 669,661.80
  4. Step 4: Simplify right side
    1,042,909.80x = 1,047,595,280,858.46
  5. Step 5: Solve for x
    x = 1,047,595,280,858.46/1,042,909.80
  6. Step 6: Final answer
    x = 1,004,492.70

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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.