Home / 1,340,999.70-2,011,499.55-442,580.10

Finding the Fourth Proportional to 1,340,999.70, 2,011,499.55 and 442,580.10

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Solution

The fourth proportional to 1,340,999.70, 2,011,499.55 and 442,580.10 is: 663,870.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,999.70 : 2,011,499.55 = 442,580.10 : x
  2. Step 2: Convert to fraction form
    1,340,999.70/2,011,499.55 = 442,580.10/x
  3. Step 3: Cross multiply
    1,340,999.70x = 2,011,499.55 × 442,580.10
  4. Step 4: Simplify right side
    1,340,999.70x = 890,249,671,988.96
  5. Step 5: Solve for x
    x = 890,249,671,988.96/1,340,999.70
  6. Step 6: Final answer
    x = 663,870.15

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1.5x scale

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.