Home / 985,807.05-1,478,710.58-424,841.55

Finding the Fourth Proportional to 985,807.05, 1,478,710.58 and 424,841.55

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Solution

The fourth proportional to 985,807.05, 1,478,710.58 and 424,841.55 is: 637,262.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,807.05 : 1,478,710.58 = 424,841.55 : x
  2. Step 2: Convert to fraction form
    985,807.05/1,478,710.58 = 424,841.55/x
  3. Step 3: Cross multiply
    985,807.05x = 1,478,710.58 × 424,841.55
  4. Step 4: Simplify right side
    985,807.05x = 628,217,692,684.39
  5. Step 5: Solve for x
    x = 628,217,692,684.39/985,807.05
  6. Step 6: Final answer
    x = 637,262.33

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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.