Home / 992,423.12-1,369,855.80-562,988.72

Finding the Fourth Proportional to 992,423.12, 1,369,855.80 and 562,988.72

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Solution

The fourth proportional to 992,423.12, 1,369,855.80 and 562,988.72 is: 777,101.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,423.12 : 1,369,855.80 = 562,988.72 : x
  2. Step 2: Convert to fraction form
    992,423.12/1,369,855.80 = 562,988.72/x
  3. Step 3: Cross multiply
    992,423.12x = 1,369,855.80 × 562,988.72
  4. Step 4: Simplify right side
    992,423.12x = 771,213,363,426.58
  5. Step 5: Solve for x
    x = 771,213,363,426.58/992,423.12
  6. Step 6: Final answer
    x = 777,101.37

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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.