Home / 1,118,938.35-1,679,871.02-664,359.47

Finding the Fourth Proportional to 1,118,938.35, 1,679,871.02 and 664,359.47

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Solution

The fourth proportional to 1,118,938.35, 1,679,871.02 and 664,359.47 is: 997,408.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,938.35 : 1,679,871.02 = 664,359.47 : x
  2. Step 2: Convert to fraction form
    1,118,938.35/1,679,871.02 = 664,359.47/x
  3. Step 3: Cross multiply
    1,118,938.35x = 1,679,871.02 × 664,359.47
  4. Step 4: Simplify right side
    1,118,938.35x = 1,116,038,208,794.41
  5. Step 5: Solve for x
    x = 1,116,038,208,794.41/1,118,938.35
  6. Step 6: Final answer
    x = 997,408.13

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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.