Home / 818,429.04-1,129,488.87-496,152.72

Finding the Fourth Proportional to 818,429.04, 1,129,488.87 and 496,152.72

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Solution

The fourth proportional to 818,429.04, 1,129,488.87 and 496,152.72 is: 684,725.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,429.04 : 1,129,488.87 = 496,152.72 : x
  2. Step 2: Convert to fraction form
    818,429.04/1,129,488.87 = 496,152.72/x
  3. Step 3: Cross multiply
    818,429.04x = 1,129,488.87 × 496,152.72
  4. Step 4: Simplify right side
    818,429.04x = 560,398,975,060.23
  5. Step 5: Solve for x
    x = 560,398,975,060.23/818,429.04
  6. Step 6: Final answer
    x = 684,725.18

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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.