Home / 831,453.40-1,247,547.30-404,752.60

Finding the Fourth Proportional to 831,453.40, 1,247,547.30 and 404,752.60

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Solution

The fourth proportional to 831,453.40, 1,247,547.30 and 404,752.60 is: 607,307.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,453.40 : 1,247,547.30 = 404,752.60 : x
  2. Step 2: Convert to fraction form
    831,453.40/1,247,547.30 = 404,752.60/x
  3. Step 3: Cross multiply
    831,453.40x = 1,247,547.30 × 404,752.60
  4. Step 4: Simplify right side
    831,453.40x = 504,948,013,297.98
  5. Step 5: Solve for x
    x = 504,948,013,297.98/831,453.40
  6. Step 6: Final answer
    x = 607,307.65

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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.