Home / 899,282.96-1,240,973.46-491,398.80

Finding the Fourth Proportional to 899,282.96, 1,240,973.46 and 491,398.80

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Solution

The fourth proportional to 899,282.96, 1,240,973.46 and 491,398.80 is: 678,110.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,282.96 : 1,240,973.46 = 491,398.80 : x
  2. Step 2: Convert to fraction form
    899,282.96/1,240,973.46 = 491,398.80/x
  3. Step 3: Cross multiply
    899,282.96x = 1,240,973.46 × 491,398.80
  4. Step 4: Simplify right side
    899,282.96x = 609,812,869,075.85
  5. Step 5: Solve for x
    x = 609,812,869,075.85/899,282.96
  6. Step 6: Final answer
    x = 678,110.12

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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.