Home / 705,320.20-1,057,980.30-670,328.20

Finding the Fourth Proportional to 705,320.20, 1,057,980.30 and 670,328.20

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Solution

The fourth proportional to 705,320.20, 1,057,980.30 and 670,328.20 is: 1,005,492.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,320.20 : 1,057,980.30 = 670,328.20 : x
  2. Step 2: Convert to fraction form
    705,320.20/1,057,980.30 = 670,328.20/x
  3. Step 3: Cross multiply
    705,320.20x = 1,057,980.30 × 670,328.20
  4. Step 4: Simplify right side
    705,320.20x = 709,194,030,134.46
  5. Step 5: Solve for x
    x = 709,194,030,134.46/705,320.20
  6. Step 6: Final answer
    x = 1,005,492.30

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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.