Home / 924,005.80-1,386,008.70-640,570.60

Finding the Fourth Proportional to 924,005.80, 1,386,008.70 and 640,570.60

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Solution

The fourth proportional to 924,005.80, 1,386,008.70 and 640,570.60 is: 960,855.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,005.80 : 1,386,008.70 = 640,570.60 : x
  2. Step 2: Convert to fraction form
    924,005.80/1,386,008.70 = 640,570.60/x
  3. Step 3: Cross multiply
    924,005.80x = 1,386,008.70 × 640,570.60
  4. Step 4: Simplify right side
    924,005.80x = 887,836,424,564.22
  5. Step 5: Solve for x
    x = 887,836,424,564.22/924,005.80
  6. Step 6: Final answer
    x = 960,855.90

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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.