Home / 970,421.67-1,455,632.32-260,449.71

Finding the Fourth Proportional to 970,421.67, 1,455,632.32 and 260,449.71

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Solution

The fourth proportional to 970,421.67, 1,455,632.32 and 260,449.71 is: 390,674.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,421.67 : 1,455,632.32 = 260,449.71 : x
  2. Step 2: Convert to fraction form
    970,421.67/1,455,632.32 = 260,449.71/x
  3. Step 3: Cross multiply
    970,421.67x = 1,455,632.32 × 260,449.71
  4. Step 4: Simplify right side
    970,421.67x = 379,119,021,394.81
  5. Step 5: Solve for x
    x = 379,119,021,394.81/970,421.67
  6. Step 6: Final answer
    x = 390,674.52

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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.