Home / 916,022.40-1,374,158.40-316,822.80

Finding the Fourth Proportional to 916,022.40, 1,374,158.40 and 316,822.80

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Solution

The fourth proportional to 916,022.40, 1,374,158.40 and 316,822.80 is: 475,277.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,022.40 : 1,374,158.40 = 316,822.80 : x
  2. Step 2: Convert to fraction form
    916,022.40/1,374,158.40 = 316,822.80/x
  3. Step 3: Cross multiply
    916,022.40x = 1,374,158.40 × 316,822.80
  4. Step 4: Simplify right side
    916,022.40x = 435,364,711,931.52
  5. Step 5: Solve for x
    x = 435,364,711,931.52/916,022.40
  6. Step 6: Final answer
    x = 475,277.36

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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.