Home / 1,003,270.32-1,385,662.95-660,637.89

Finding the Fourth Proportional to 1,003,270.32, 1,385,662.95 and 660,637.89

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Solution

The fourth proportional to 1,003,270.32, 1,385,662.95 and 660,637.89 is: 912,437.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,270.32 : 1,385,662.95 = 660,637.89 : x
  2. Step 2: Convert to fraction form
    1,003,270.32/1,385,662.95 = 660,637.89/x
  3. Step 3: Cross multiply
    1,003,270.32x = 1,385,662.95 × 660,637.89
  4. Step 4: Simplify right side
    1,003,270.32x = 915,421,447,539.18
  5. Step 5: Solve for x
    x = 915,421,447,539.18/1,003,270.32
  6. Step 6: Final answer
    x = 912,437.48

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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.