Home / 772,544.68-1,065,720.90-570,990.76

Finding the Fourth Proportional to 772,544.68, 1,065,720.90 and 570,990.76

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Solution

The fourth proportional to 772,544.68, 1,065,720.90 and 570,990.76 is: 787,678.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,544.68 : 1,065,720.90 = 570,990.76 : x
  2. Step 2: Convert to fraction form
    772,544.68/1,065,720.90 = 570,990.76/x
  3. Step 3: Cross multiply
    772,544.68x = 1,065,720.90 × 570,990.76
  4. Step 4: Simplify right side
    772,544.68x = 608,516,786,638.88
  5. Step 5: Solve for x
    x = 608,516,786,638.88/772,544.68
  6. Step 6: Final answer
    x = 787,678.44

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.