Home / 699,649.20-1,048,696.20-384,332.40

Finding the Fourth Proportional to 699,649.20, 1,048,696.20 and 384,332.40

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Solution

The fourth proportional to 699,649.20, 1,048,696.20 and 384,332.40 is: 576,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,649.20 : 1,048,696.20 = 384,332.40 : x
  2. Step 2: Convert to fraction form
    699,649.20/1,048,696.20 = 384,332.40/x
  3. Step 3: Cross multiply
    699,649.20x = 1,048,696.20 × 384,332.40
  4. Step 4: Simplify right side
    699,649.20x = 403,047,927,416.88
  5. Step 5: Solve for x
    x = 403,047,927,416.88/699,649.20
  6. Step 6: Final answer
    x = 576,071.45

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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.