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Finding the Fourth Proportional to 679,943.52, 937,764 and 603,518.40

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Solution

The fourth proportional to 679,943.52, 937,764 and 603,518.40 is: 832,360.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,943.52 : 937,764 = 603,518.40 : x
  2. Step 2: Convert to fraction form
    679,943.52/937,764 = 603,518.40/x
  3. Step 3: Cross multiply
    679,943.52x = 937,764 × 603,518.40
  4. Step 4: Simplify right side
    679,943.52x = 565,957,828,857.60
  5. Step 5: Solve for x
    x = 565,957,828,857.60/679,943.52
  6. Step 6: Final answer
    x = 832,360.06

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1.5x scale

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.