Home / 830,307.47-1,145,837.00-490,807.31

Finding the Fourth Proportional to 830,307.47, 1,145,837.00 and 490,807.31

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Solution

The fourth proportional to 830,307.47, 1,145,837.00 and 490,807.31 is: 677,321.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,307.47 : 1,145,837.00 = 490,807.31 : x
  2. Step 2: Convert to fraction form
    830,307.47/1,145,837.00 = 490,807.31/x
  3. Step 3: Cross multiply
    830,307.47x = 1,145,837.00 × 490,807.31
  4. Step 4: Simplify right side
    830,307.47x = 562,385,171,166.30
  5. Step 5: Solve for x
    x = 562,385,171,166.30/830,307.47
  6. Step 6: Final answer
    x = 677,321.59

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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.