Home / 879,212.68-1,213,314.18-476,804.68

Finding the Fourth Proportional to 879,212.68, 1,213,314.18 and 476,804.68

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Solution

The fourth proportional to 879,212.68, 1,213,314.18 and 476,804.68 is: 657,990.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,212.68 : 1,213,314.18 = 476,804.68 : x
  2. Step 2: Convert to fraction form
    879,212.68/1,213,314.18 = 476,804.68/x
  3. Step 3: Cross multiply
    879,212.68x = 1,213,314.18 × 476,804.68
  4. Step 4: Simplify right side
    879,212.68x = 578,513,879,334.36
  5. Step 5: Solve for x
    x = 578,513,879,334.36/879,212.68
  6. Step 6: Final answer
    x = 657,990.83

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Double scale
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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.