Home / 744,808.40-1,117,212.60-478,869.20

Finding the Fourth Proportional to 744,808.40, 1,117,212.60 and 478,869.20

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Solution

The fourth proportional to 744,808.40, 1,117,212.60 and 478,869.20 is: 718,303.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,808.40 : 1,117,212.60 = 478,869.20 : x
  2. Step 2: Convert to fraction form
    744,808.40/1,117,212.60 = 478,869.20/x
  3. Step 3: Cross multiply
    744,808.40x = 1,117,212.60 × 478,869.20
  4. Step 4: Simplify right side
    744,808.40x = 534,998,703,991.92
  5. Step 5: Solve for x
    x = 534,998,703,991.92/744,808.40
  6. Step 6: Final answer
    x = 718,303.80

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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.