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Finding the Fourth Proportional to 875,730.16, 1,208,482.86 and 488,557

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Solution

The fourth proportional to 875,730.16, 1,208,482.86 and 488,557 is: 674,194.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,730.16 : 1,208,482.86 = 488,557 : x
  2. Step 2: Convert to fraction form
    875,730.16/1,208,482.86 = 488,557/x
  3. Step 3: Cross multiply
    875,730.16x = 1,208,482.86 × 488,557
  4. Step 4: Simplify right side
    875,730.16x = 590,412,760,633.02
  5. Step 5: Solve for x
    x = 590,412,760,633.02/875,730.16
  6. Step 6: Final answer
    x = 674,194.85

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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.