Home / 778,518.81-1,074,431.12-472,524.71

Finding the Fourth Proportional to 778,518.81, 1,074,431.12 and 472,524.71

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Solution

The fourth proportional to 778,518.81, 1,074,431.12 and 472,524.71 is: 652,129.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,518.81 : 1,074,431.12 = 472,524.71 : x
  2. Step 2: Convert to fraction form
    778,518.81/1,074,431.12 = 472,524.71/x
  3. Step 3: Cross multiply
    778,518.81x = 1,074,431.12 × 472,524.71
  4. Step 4: Simplify right side
    778,518.81x = 507,695,245,658.20
  5. Step 5: Solve for x
    x = 507,695,245,658.20/778,518.81
  6. Step 6: Final answer
    x = 652,129.71

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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.