Home / 808,421.30-1,115,429.58-459,534.32

Finding the Fourth Proportional to 808,421.30, 1,115,429.58 and 459,534.32

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Solution

The fourth proportional to 808,421.30, 1,115,429.58 and 459,534.32 is: 634,048.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,421.30 : 1,115,429.58 = 459,534.32 : x
  2. Step 2: Convert to fraction form
    808,421.30/1,115,429.58 = 459,534.32/x
  3. Step 3: Cross multiply
    808,421.30x = 1,115,429.58 × 459,534.32
  4. Step 4: Simplify right side
    808,421.30x = 512,578,173,553.19
  5. Step 5: Solve for x
    x = 512,578,173,553.19/808,421.30
  6. Step 6: Final answer
    x = 634,048.33

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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.