Home / 1,170,069.40-1,754,643.30-421,730.20

Finding the Fourth Proportional to 1,170,069.40, 1,754,643.30 and 421,730.20

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Solution

The fourth proportional to 1,170,069.40, 1,754,643.30 and 421,730.20 is: 632,429.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,069.40 : 1,754,643.30 = 421,730.20 : x
  2. Step 2: Convert to fraction form
    1,170,069.40/1,754,643.30 = 421,730.20/x
  3. Step 3: Cross multiply
    1,170,069.40x = 1,754,643.30 × 421,730.20
  4. Step 4: Simplify right side
    1,170,069.40x = 739,986,069,837.66
  5. Step 5: Solve for x
    x = 739,986,069,837.66/1,170,069.40
  6. Step 6: Final answer
    x = 632,429.21

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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.