Home / 1,104,402.10-1,656,603.15-978,430.90

Finding the Fourth Proportional to 1,104,402.10, 1,656,603.15 and 978,430.90

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Solution

The fourth proportional to 1,104,402.10, 1,656,603.15 and 978,430.90 is: 1,467,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104,402.10 : 1,656,603.15 = 978,430.90 : x
  2. Step 2: Convert to fraction form
    1,104,402.10/1,656,603.15 = 978,430.90/x
  3. Step 3: Cross multiply
    1,104,402.10x = 1,656,603.15 × 978,430.90
  4. Step 4: Simplify right side
    1,104,402.10x = 1,620,871,710,997.34
  5. Step 5: Solve for x
    x = 1,620,871,710,997.34/1,104,402.10
  6. Step 6: Final answer
    x = 1,467,646.35

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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.