Home / 830,785.21-1,146,490.74-468,139.57

Finding the Fourth Proportional to 830,785.21, 1,146,490.74 and 468,139.57

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Solution

The fourth proportional to 830,785.21, 1,146,490.74 and 468,139.57 is: 646,036.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,785.21 : 1,146,490.74 = 468,139.57 : x
  2. Step 2: Convert to fraction form
    830,785.21/1,146,490.74 = 468,139.57/x
  3. Step 3: Cross multiply
    830,785.21x = 1,146,490.74 × 468,139.57
  4. Step 4: Simplify right side
    830,785.21x = 536,717,679,166.36
  5. Step 5: Solve for x
    x = 536,717,679,166.36/830,785.21
  6. Step 6: Final answer
    x = 646,036.63

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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.