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Finding the Fourth Proportional to 666,956.48, 918,459.16 and 579,702.48

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Solution

The fourth proportional to 666,956.48, 918,459.16 and 579,702.48 is: 798,302.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,956.48 : 918,459.16 = 579,702.48 : x
  2. Step 2: Convert to fraction form
    666,956.48/918,459.16 = 579,702.48/x
  3. Step 3: Cross multiply
    666,956.48x = 918,459.16 × 579,702.48
  4. Step 4: Simplify right side
    666,956.48x = 532,433,052,830.72
  5. Step 5: Solve for x
    x = 532,433,052,830.72/666,956.48
  6. Step 6: Final answer
    x = 798,302.54

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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.