Home / 818,424.42-1,129,482.48-496,148.10

Finding the Fourth Proportional to 818,424.42, 1,129,482.48 and 496,148.10

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Solution

The fourth proportional to 818,424.42, 1,129,482.48 and 496,148.10 is: 684,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,424.42 : 1,129,482.48 = 496,148.10 : x
  2. Step 2: Convert to fraction form
    818,424.42/1,129,482.48 = 496,148.10/x
  3. Step 3: Cross multiply
    818,424.42x = 1,129,482.48 × 496,148.10
  4. Step 4: Simplify right side
    818,424.42x = 560,390,586,435.29
  5. Step 5: Solve for x
    x = 560,390,586,435.29/818,424.42
  6. Step 6: Final answer
    x = 684,718.80

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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.