Home / 1,022,663.40-1,533,994.80-312,691.38

Finding the Fourth Proportional to 1,022,663.40, 1,533,994.80 and 312,691.38

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Solution

The fourth proportional to 1,022,663.40, 1,533,994.80 and 312,691.38 is: 469,036.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,663.40 : 1,533,994.80 = 312,691.38 : x
  2. Step 2: Convert to fraction form
    1,022,663.40/1,533,994.80 = 312,691.38/x
  3. Step 3: Cross multiply
    1,022,663.40x = 1,533,994.80 × 312,691.38
  4. Step 4: Simplify right side
    1,022,663.40x = 479,666,950,924.82
  5. Step 5: Solve for x
    x = 479,666,950,924.82/1,022,663.40
  6. Step 6: Final answer
    x = 469,036.98

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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.