Home / 870,482.34-1,201,272.66-488,599.20

Finding the Fourth Proportional to 870,482.34, 1,201,272.66 and 488,599.20

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Solution

The fourth proportional to 870,482.34, 1,201,272.66 and 488,599.20 is: 674,270.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,482.34 : 1,201,272.66 = 488,599.20 : x
  2. Step 2: Convert to fraction form
    870,482.34/1,201,272.66 = 488,599.20/x
  3. Step 3: Cross multiply
    870,482.34x = 1,201,272.66 × 488,599.20
  4. Step 4: Simplify right side
    870,482.34x = 586,940,860,657.87
  5. Step 5: Solve for x
    x = 586,940,860,657.87/870,482.34
  6. Step 6: Final answer
    x = 674,270.84

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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.