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Finding the Fourth Proportional to 705,772.80, 973,972.40 and 383,482.90

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Solution

The fourth proportional to 705,772.80, 973,972.40 and 383,482.90 is: 529,209.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,772.80 : 973,972.40 = 383,482.90 : x
  2. Step 2: Convert to fraction form
    705,772.80/973,972.40 = 383,482.90/x
  3. Step 3: Cross multiply
    705,772.80x = 973,972.40 × 383,482.90
  4. Step 4: Simplify right side
    705,772.80x = 373,501,756,119.62
  5. Step 5: Solve for x
    x = 373,501,756,119.62/705,772.80
  6. Step 6: Final answer
    x = 529,209.62

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1.5x scale

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.