Home / 830,384.36-1,146,015.03-508,307.30

Finding the Fourth Proportional to 830,384.36, 1,146,015.03 and 508,307.30

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Solution

The fourth proportional to 830,384.36, 1,146,015.03 and 508,307.30 is: 701,515.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,384.36 : 1,146,015.03 = 508,307.30 : x
  2. Step 2: Convert to fraction form
    830,384.36/1,146,015.03 = 508,307.30/x
  3. Step 3: Cross multiply
    830,384.36x = 1,146,015.03 × 508,307.30
  4. Step 4: Simplify right side
    830,384.36x = 582,527,799,928.64
  5. Step 5: Solve for x
    x = 582,527,799,928.64/830,384.36
  6. Step 6: Final answer
    x = 701,515.87

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Double scale
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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.