Home / 1,430,427.60-2,144,547.90-720,964.80

Finding the Fourth Proportional to 1,430,427.60, 2,144,547.90 and 720,964.80

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Solution

The fourth proportional to 1,430,427.60, 2,144,547.90 and 720,964.80 is: 1,080,896.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,427.60 : 2,144,547.90 = 720,964.80 : x
  2. Step 2: Convert to fraction form
    1,430,427.60/2,144,547.90 = 720,964.80/x
  3. Step 3: Cross multiply
    1,430,427.60x = 2,144,547.90 × 720,964.80
  4. Step 4: Simplify right side
    1,430,427.60x = 1,546,143,547,813.92
  5. Step 5: Solve for x
    x = 1,546,143,547,813.92/1,430,427.60
  6. Step 6: Final answer
    x = 1,080,896.05

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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.