Home / 918,417.07-1,267,621.21-510,661.86

Finding the Fourth Proportional to 918,417.07, 1,267,621.21 and 510,661.86

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Solution

The fourth proportional to 918,417.07, 1,267,621.21 and 510,661.86 is: 704,827.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,417.07 : 1,267,621.21 = 510,661.86 : x
  2. Step 2: Convert to fraction form
    918,417.07/1,267,621.21 = 510,661.86/x
  3. Step 3: Cross multiply
    918,417.07x = 1,267,621.21 × 510,661.86
  4. Step 4: Simplify right side
    918,417.07x = 647,325,804,874.05
  5. Step 5: Solve for x
    x = 647,325,804,874.05/918,417.07
  6. Step 6: Final answer
    x = 704,827.72

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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.