Home / 2,689,829.40-4,039,409.70-1,430,117.40

Finding the Fourth Proportional to 2,689,829.40, 4,039,409.70 and 1,430,117.40

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Solution

The fourth proportional to 2,689,829.40, 4,039,409.70 and 1,430,117.40 is: 2,147,656.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689,829.40 : 4,039,409.70 = 1,430,117.40 : x
  2. Step 2: Convert to fraction form
    2,689,829.40/4,039,409.70 = 1,430,117.40/x
  3. Step 3: Cross multiply
    2,689,829.40x = 4,039,409.70 × 1,430,117.40
  4. Step 4: Simplify right side
    2,689,829.40x = 5,776,830,097,698.78
  5. Step 5: Solve for x
    x = 5,776,830,097,698.78/2,689,829.40
  6. Step 6: Final answer
    x = 2,147,656.69

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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.