Home / 1,140,021.68-1,573,218.18-630,727.70

Finding the Fourth Proportional to 1,140,021.68, 1,573,218.18 and 630,727.70

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Solution

The fourth proportional to 1,140,021.68, 1,573,218.18 and 630,727.70 is: 870,397.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,021.68 : 1,573,218.18 = 630,727.70 : x
  2. Step 2: Convert to fraction form
    1,140,021.68/1,573,218.18 = 630,727.70/x
  3. Step 3: Cross multiply
    1,140,021.68x = 1,573,218.18 × 630,727.70
  4. Step 4: Simplify right side
    1,140,021.68x = 992,272,276,403.50
  5. Step 5: Solve for x
    x = 992,272,276,403.50/1,140,021.68
  6. Step 6: Final answer
    x = 870,397.73

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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.