Home / 872,437.64-1,203,952.21-490,464.32

Finding the Fourth Proportional to 872,437.64, 1,203,952.21 and 490,464.32

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Solution

The fourth proportional to 872,437.64, 1,203,952.21 and 490,464.32 is: 676,834.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,437.64 : 1,203,952.21 = 490,464.32 : x
  2. Step 2: Convert to fraction form
    872,437.64/1,203,952.21 = 490,464.32/x
  3. Step 3: Cross multiply
    872,437.64x = 1,203,952.21 × 490,464.32
  4. Step 4: Simplify right side
    872,437.64x = 590,495,594,744.23
  5. Step 5: Solve for x
    x = 590,495,594,744.23/872,437.64
  6. Step 6: Final answer
    x = 676,834.16

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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.