Home / 1,029,053.04-1,420,143.84-621,148.40

Finding the Fourth Proportional to 1,029,053.04, 1,420,143.84 and 621,148.40

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Solution

The fourth proportional to 1,029,053.04, 1,420,143.84 and 621,148.40 is: 857,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,053.04 : 1,420,143.84 = 621,148.40 : x
  2. Step 2: Convert to fraction form
    1,029,053.04/1,420,143.84 = 621,148.40/x
  3. Step 3: Cross multiply
    1,029,053.04x = 1,420,143.84 × 621,148.40
  4. Step 4: Simplify right side
    1,029,053.04x = 882,120,073,985.86
  5. Step 5: Solve for x
    x = 882,120,073,985.86/1,029,053.04
  6. Step 6: Final answer
    x = 857,215.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.