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Finding the Fourth Proportional to 560,157.39, 772,878.92 and 330,720.03

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Solution

The fourth proportional to 560,157.39, 772,878.92 and 330,720.03 is: 456,312.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,157.39 : 772,878.92 = 330,720.03 : x
  2. Step 2: Convert to fraction form
    560,157.39/772,878.92 = 330,720.03/x
  3. Step 3: Cross multiply
    560,157.39x = 772,878.92 × 330,720.03
  4. Step 4: Simplify right side
    560,157.39x = 255,606,537,955.17
  5. Step 5: Solve for x
    x = 255,606,537,955.17/560,157.39
  6. Step 6: Final answer
    x = 456,312.00

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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.