Home / 1,010,206.40-1,515,309.60-478,765.40

Finding the Fourth Proportional to 1,010,206.40, 1,515,309.60 and 478,765.40

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Solution

The fourth proportional to 1,010,206.40, 1,515,309.60 and 478,765.40 is: 718,148.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,206.40 : 1,515,309.60 = 478,765.40 : x
  2. Step 2: Convert to fraction form
    1,010,206.40/1,515,309.60 = 478,765.40/x
  3. Step 3: Cross multiply
    1,010,206.40x = 1,515,309.60 × 478,765.40
  4. Step 4: Simplify right side
    1,010,206.40x = 725,477,806,767.84
  5. Step 5: Solve for x
    x = 725,477,806,767.84/1,010,206.40
  6. Step 6: Final answer
    x = 718,148.10

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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.