Home / 878,985.75-1,213,000.35-476,577.75

Finding the Fourth Proportional to 878,985.75, 1,213,000.35 and 476,577.75

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Solution

The fourth proportional to 878,985.75, 1,213,000.35 and 476,577.75 is: 657,677.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,985.75 : 1,213,000.35 = 476,577.75 : x
  2. Step 2: Convert to fraction form
    878,985.75/1,213,000.35 = 476,577.75/x
  3. Step 3: Cross multiply
    878,985.75x = 1,213,000.35 × 476,577.75
  4. Step 4: Simplify right side
    878,985.75x = 578,088,977,552.21
  5. Step 5: Solve for x
    x = 578,088,977,552.21/878,985.75
  6. Step 6: Final answer
    x = 657,677.30

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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.