Home / 1,314,007.40-1,971,011.10-427,543.40

Finding the Fourth Proportional to 1,314,007.40, 1,971,011.10 and 427,543.40

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Solution

The fourth proportional to 1,314,007.40, 1,971,011.10 and 427,543.40 is: 641,315.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,007.40 : 1,971,011.10 = 427,543.40 : x
  2. Step 2: Convert to fraction form
    1,314,007.40/1,971,011.10 = 427,543.40/x
  3. Step 3: Cross multiply
    1,314,007.40x = 1,971,011.10 × 427,543.40
  4. Step 4: Simplify right side
    1,314,007.40x = 842,692,787,131.74
  5. Step 5: Solve for x
    x = 842,692,787,131.74/1,314,007.40
  6. Step 6: Final answer
    x = 641,315.10

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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.