Home / 1,020,385.80-1,530,740.70-346,530.60

Finding the Fourth Proportional to 1,020,385.80, 1,530,740.70 and 346,530.60

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Solution

The fourth proportional to 1,020,385.80, 1,530,740.70 and 346,530.60 is: 519,850.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,385.80 : 1,530,740.70 = 346,530.60 : x
  2. Step 2: Convert to fraction form
    1,020,385.80/1,530,740.70 = 346,530.60/x
  3. Step 3: Cross multiply
    1,020,385.80x = 1,530,740.70 × 346,530.60
  4. Step 4: Simplify right side
    1,020,385.80x = 530,448,493,215.42
  5. Step 5: Solve for x
    x = 530,448,493,215.42/1,020,385.80
  6. Step 6: Final answer
    x = 519,850.92

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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.