Home / 909,113.10-1,363,669.65-403,673.10

Finding the Fourth Proportional to 909,113.10, 1,363,669.65 and 403,673.10

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Solution

The fourth proportional to 909,113.10, 1,363,669.65 and 403,673.10 is: 605,509.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,113.10 : 1,363,669.65 = 403,673.10 : x
  2. Step 2: Convert to fraction form
    909,113.10/1,363,669.65 = 403,673.10/x
  3. Step 3: Cross multiply
    909,113.10x = 1,363,669.65 × 403,673.10
  4. Step 4: Simplify right side
    909,113.10x = 550,476,754,991.42
  5. Step 5: Solve for x
    x = 550,476,754,991.42/909,113.10
  6. Step 6: Final answer
    x = 605,509.65

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Double scale
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Similar ratio
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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.