Home / 818,412.04-1,129,465.38-496,135.72

Finding the Fourth Proportional to 818,412.04, 1,129,465.38 and 496,135.72

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Solution

The fourth proportional to 818,412.04, 1,129,465.38 and 496,135.72 is: 684,701.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,412.04 : 1,129,465.38 = 496,135.72 : x
  2. Step 2: Convert to fraction form
    818,412.04/1,129,465.38 = 496,135.72/x
  3. Step 3: Cross multiply
    818,412.04x = 1,129,465.38 × 496,135.72
  4. Step 4: Simplify right side
    818,412.04x = 560,368,119,521.37
  5. Step 5: Solve for x
    x = 560,368,119,521.37/818,412.04
  6. Step 6: Final answer
    x = 684,701.71

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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.