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Finding the Fourth Proportional to 715,407.10, 986,275.30 and 570,704.02

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Solution

The fourth proportional to 715,407.10, 986,275.30 and 570,704.02 is: 786,784.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,407.10 : 986,275.30 = 570,704.02 : x
  2. Step 2: Convert to fraction form
    715,407.10/986,275.30 = 570,704.02/x
  3. Step 3: Cross multiply
    715,407.10x = 986,275.30 × 570,704.02
  4. Step 4: Simplify right side
    715,407.10x = 562,871,281,553.00
  5. Step 5: Solve for x
    x = 562,871,281,553.00/715,407.10
  6. Step 6: Final answer
    x = 786,784.59

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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.