Home / 848,143.12-1,272,215.52-398,534.32

Finding the Fourth Proportional to 848,143.12, 1,272,215.52 and 398,534.32

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Solution

The fourth proportional to 848,143.12, 1,272,215.52 and 398,534.32 is: 597,801.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,143.12 : 1,272,215.52 = 398,534.32 : x
  2. Step 2: Convert to fraction form
    848,143.12/1,272,215.52 = 398,534.32/x
  3. Step 3: Cross multiply
    848,143.12x = 1,272,215.52 × 398,534.32
  4. Step 4: Simplify right side
    848,143.12x = 507,021,547,156.65
  5. Step 5: Solve for x
    x = 507,021,547,156.65/848,143.12
  6. Step 6: Final answer
    x = 597,801.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.