Home / 830,140.98-1,145,848.60-486,057.58

Finding the Fourth Proportional to 830,140.98, 1,145,848.60 and 486,057.58

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Solution

The fourth proportional to 830,140.98, 1,145,848.60 and 486,057.58 is: 670,908.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,140.98 : 1,145,848.60 = 486,057.58 : x
  2. Step 2: Convert to fraction form
    830,140.98/1,145,848.60 = 486,057.58/x
  3. Step 3: Cross multiply
    830,140.98x = 1,145,848.60 × 486,057.58
  4. Step 4: Simplify right side
    830,140.98x = 556,948,397,562.39
  5. Step 5: Solve for x
    x = 556,948,397,562.39/830,140.98
  6. Step 6: Final answer
    x = 670,908.21

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Double scale
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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.