Home / 1,437,421.82-2,155,666.32-477,619.70

Finding the Fourth Proportional to 1,437,421.82, 2,155,666.32 and 477,619.70

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Solution

The fourth proportional to 1,437,421.82, 2,155,666.32 and 477,619.70 is: 716,274.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437,421.82 : 2,155,666.32 = 477,619.70 : x
  2. Step 2: Convert to fraction form
    1,437,421.82/2,155,666.32 = 477,619.70/x
  3. Step 3: Cross multiply
    1,437,421.82x = 2,155,666.32 × 477,619.70
  4. Step 4: Simplify right side
    1,437,421.82x = 1,029,588,690,280.17
  5. Step 5: Solve for x
    x = 1,029,588,690,280.17/1,437,421.82
  6. Step 6: Final answer
    x = 716,274.57

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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.