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Finding the Fourth Proportional to 879,953.52, 1,214,354.04 and 497,980.20

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Solution

The fourth proportional to 879,953.52, 1,214,354.04 and 497,980.20 is: 687,222.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,953.52 : 1,214,354.04 = 497,980.20 : x
  2. Step 2: Convert to fraction form
    879,953.52/1,214,354.04 = 497,980.20/x
  3. Step 3: Cross multiply
    879,953.52x = 1,214,354.04 × 497,980.20
  4. Step 4: Simplify right side
    879,953.52x = 604,724,267,710.01
  5. Step 5: Solve for x
    x = 604,724,267,710.01/879,953.52
  6. Step 6: Final answer
    x = 687,222.97

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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.