Home / 992,823.40-1,488,506.10-393,488.20

Finding the Fourth Proportional to 992,823.40, 1,488,506.10 and 393,488.20

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Solution

The fourth proportional to 992,823.40, 1,488,506.10 and 393,488.20 is: 589,943.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,823.40 : 1,488,506.10 = 393,488.20 : x
  2. Step 2: Convert to fraction form
    992,823.40/1,488,506.10 = 393,488.20/x
  3. Step 3: Cross multiply
    992,823.40x = 1,488,506.10 × 393,488.20
  4. Step 4: Simplify right side
    992,823.40x = 585,709,585,978.02
  5. Step 5: Solve for x
    x = 585,709,585,978.02/992,823.40
  6. Step 6: Final answer
    x = 589,943.37

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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.