Home / 753,430.84-1,039,729.62-409,263.64

Finding the Fourth Proportional to 753,430.84, 1,039,729.62 and 409,263.64

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Solution

The fourth proportional to 753,430.84, 1,039,729.62 and 409,263.64 is: 564,781.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,430.84 : 1,039,729.62 = 409,263.64 : x
  2. Step 2: Convert to fraction form
    753,430.84/1,039,729.62 = 409,263.64/x
  3. Step 3: Cross multiply
    753,430.84x = 1,039,729.62 × 409,263.64
  4. Step 4: Simplify right side
    753,430.84x = 425,523,528,897.02
  5. Step 5: Solve for x
    x = 425,523,528,897.02/753,430.84
  6. Step 6: Final answer
    x = 564,781.14

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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.