Home / 1,772,120.82-2,658,052.72-692,430.34

Finding the Fourth Proportional to 1,772,120.82, 2,658,052.72 and 692,430.34

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Solution

The fourth proportional to 1,772,120.82, 2,658,052.72 and 692,430.34 is: 1,038,595.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772,120.82 : 2,658,052.72 = 692,430.34 : x
  2. Step 2: Convert to fraction form
    1,772,120.82/2,658,052.72 = 692,430.34/x
  3. Step 3: Cross multiply
    1,772,120.82x = 2,658,052.72 × 692,430.34
  4. Step 4: Simplify right side
    1,772,120.82x = 1,840,516,348,647.53
  5. Step 5: Solve for x
    x = 1,840,516,348,647.53/1,772,120.82
  6. Step 6: Final answer
    x = 1,038,595.30

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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.