Home / 879,775.80-1,319,663.70-564,847.80

Finding the Fourth Proportional to 879,775.80, 1,319,663.70 and 564,847.80

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Solution

The fourth proportional to 879,775.80, 1,319,663.70 and 564,847.80 is: 847,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,775.80 : 1,319,663.70 = 564,847.80 : x
  2. Step 2: Convert to fraction form
    879,775.80/1,319,663.70 = 564,847.80/x
  3. Step 3: Cross multiply
    879,775.80x = 1,319,663.70 × 564,847.80
  4. Step 4: Simplify right side
    879,775.80x = 745,409,137,684.86
  5. Step 5: Solve for x
    x = 745,409,137,684.86/879,775.80
  6. Step 6: Final answer
    x = 847,271.70

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Double scale
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Similar ratio
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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.