Home / 918,829.67-1,268,012.36-556,319.84

Finding the Fourth Proportional to 918,829.67, 1,268,012.36 and 556,319.84

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Solution

The fourth proportional to 918,829.67, 1,268,012.36 and 556,319.84 is: 767,737.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,829.67 : 1,268,012.36 = 556,319.84 : x
  2. Step 2: Convert to fraction form
    918,829.67/1,268,012.36 = 556,319.84/x
  3. Step 3: Cross multiply
    918,829.67x = 1,268,012.36 × 556,319.84
  4. Step 4: Simplify right side
    918,829.67x = 705,420,430,451.62
  5. Step 5: Solve for x
    x = 705,420,430,451.62/918,829.67
  6. Step 6: Final answer
    x = 767,737.98

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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.