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Finding the Fourth Proportional to 673,720.80, 1,010,597.40 and 200,421.60

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Solution

The fourth proportional to 673,720.80, 1,010,597.40 and 200,421.60 is: 300,637.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,720.80 : 1,010,597.40 = 200,421.60 : x
  2. Step 2: Convert to fraction form
    673,720.80/1,010,597.40 = 200,421.60/x
  3. Step 3: Cross multiply
    673,720.80x = 1,010,597.40 × 200,421.60
  4. Step 4: Simplify right side
    673,720.80x = 202,545,547,863.84
  5. Step 5: Solve for x
    x = 202,545,547,863.84/673,720.80
  6. Step 6: Final answer
    x = 300,637.22

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1.5x scale

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.