Home / 899,613.84-1,242,396.72-778,172.16

Finding the Fourth Proportional to 899,613.84, 1,242,396.72 and 778,172.16

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Solution

The fourth proportional to 899,613.84, 1,242,396.72 and 778,172.16 is: 1,074,681.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,613.84 : 1,242,396.72 = 778,172.16 : x
  2. Step 2: Convert to fraction form
    899,613.84/1,242,396.72 = 778,172.16/x
  3. Step 3: Cross multiply
    899,613.84x = 1,242,396.72 × 778,172.16
  4. Step 4: Simplify right side
    899,613.84x = 966,798,539,179.32
  5. Step 5: Solve for x
    x = 966,798,539,179.32/899,613.84
  6. Step 6: Final answer
    x = 1,074,681.71

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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.