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Finding the Fourth Proportional to 486,574.70, 671,789.04 and 435,498.98

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Solution

The fourth proportional to 486,574.70, 671,789.04 and 435,498.98 is: 601,271.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,574.70 : 671,789.04 = 435,498.98 : x
  2. Step 2: Convert to fraction form
    486,574.70/671,789.04 = 435,498.98/x
  3. Step 3: Cross multiply
    486,574.70x = 671,789.04 × 435,498.98
  4. Step 4: Simplify right side
    486,574.70x = 292,563,441,695.18
  5. Step 5: Solve for x
    x = 292,563,441,695.18/486,574.70
  6. Step 6: Final answer
    x = 601,271.38

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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.