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Finding the Fourth Proportional to 852,702.80, 1,176,698.76 and 470,728.40

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Solution

The fourth proportional to 852,702.80, 1,176,698.76 and 470,728.40 is: 649,588.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,702.80 : 1,176,698.76 = 470,728.40 : x
  2. Step 2: Convert to fraction form
    852,702.80/1,176,698.76 = 470,728.40/x
  3. Step 3: Cross multiply
    852,702.80x = 1,176,698.76 × 470,728.40
  4. Step 4: Simplify right side
    852,702.80x = 553,905,524,576.78
  5. Step 5: Solve for x
    x = 553,905,524,576.78/852,702.80
  6. Step 6: Final answer
    x = 649,588.02

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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.