Home / 1,209,000.02-1,668,420.01-665,124.13

Finding the Fourth Proportional to 1,209,000.02, 1,668,420.01 and 665,124.13

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Solution

The fourth proportional to 1,209,000.02, 1,668,420.01 and 665,124.13 is: 917,871.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,000.02 : 1,668,420.01 = 665,124.13 : x
  2. Step 2: Convert to fraction form
    1,209,000.02/1,668,420.01 = 665,124.13/x
  3. Step 3: Cross multiply
    1,209,000.02x = 1,668,420.01 × 665,124.13
  4. Step 4: Simplify right side
    1,209,000.02x = 1,109,706,407,625.84
  5. Step 5: Solve for x
    x = 1,109,706,407,625.84/1,209,000.02
  6. Step 6: Final answer
    x = 917,871.29

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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.