Home / 693,411.20-1,040,116.80-553,443.20

Finding the Fourth Proportional to 693,411.20, 1,040,116.80 and 553,443.20

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Solution

The fourth proportional to 693,411.20, 1,040,116.80 and 553,443.20 is: 830,164.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,411.20 : 1,040,116.80 = 553,443.20 : x
  2. Step 2: Convert to fraction form
    693,411.20/1,040,116.80 = 553,443.20/x
  3. Step 3: Cross multiply
    693,411.20x = 1,040,116.80 × 553,443.20
  4. Step 4: Simplify right side
    693,411.20x = 575,645,570,165.76
  5. Step 5: Solve for x
    x = 575,645,570,165.76/693,411.20
  6. Step 6: Final answer
    x = 830,164.80

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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.