Home / 788,646.57-1,088,332.77-426,070.21

Finding the Fourth Proportional to 788,646.57, 1,088,332.77 and 426,070.21

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Solution

The fourth proportional to 788,646.57, 1,088,332.77 and 426,070.21 is: 587,977.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,646.57 : 1,088,332.77 = 426,070.21 : x
  2. Step 2: Convert to fraction form
    788,646.57/1,088,332.77 = 426,070.21/x
  3. Step 3: Cross multiply
    788,646.57x = 1,088,332.77 × 426,070.21
  4. Step 4: Simplify right side
    788,646.57x = 463,706,171,863.78
  5. Step 5: Solve for x
    x = 463,706,171,863.78/788,646.57
  6. Step 6: Final answer
    x = 587,977.16

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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.