Home / 759,702.17-1,139,132.57-310,738.31

Finding the Fourth Proportional to 759,702.17, 1,139,132.57 and 310,738.31

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Solution

The fourth proportional to 759,702.17, 1,139,132.57 and 310,738.31 is: 465,935.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,702.17 : 1,139,132.57 = 310,738.31 : x
  2. Step 2: Convert to fraction form
    759,702.17/1,139,132.57 = 310,738.31/x
  3. Step 3: Cross multiply
    759,702.17x = 1,139,132.57 × 310,738.31
  4. Step 4: Simplify right side
    759,702.17x = 353,972,126,690.15
  5. Step 5: Solve for x
    x = 353,972,126,690.15/759,702.17
  6. Step 6: Final answer
    x = 465,935.39

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1.5x scale

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.