Home / 679,918.40-1,020,266.40-469,707.20

Finding the Fourth Proportional to 679,918.40, 1,020,266.40 and 469,707.20

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Solution

The fourth proportional to 679,918.40, 1,020,266.40 and 469,707.20 is: 704,829.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,918.40 : 1,020,266.40 = 469,707.20 : x
  2. Step 2: Convert to fraction form
    679,918.40/1,020,266.40 = 469,707.20/x
  3. Step 3: Cross multiply
    679,918.40x = 1,020,266.40 × 469,707.20
  4. Step 4: Simplify right side
    679,918.40x = 479,226,473,998.08
  5. Step 5: Solve for x
    x = 479,226,473,998.08/679,918.40
  6. Step 6: Final answer
    x = 704,829.39

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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.