Home / 1,319,307.48-1,820,647.83-715,695.48

Finding the Fourth Proportional to 1,319,307.48, 1,820,647.83 and 715,695.48

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Solution

The fourth proportional to 1,319,307.48, 1,820,647.83 and 715,695.48 is: 987,661.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,307.48 : 1,820,647.83 = 715,695.48 : x
  2. Step 2: Convert to fraction form
    1,319,307.48/1,820,647.83 = 715,695.48/x
  3. Step 3: Cross multiply
    1,319,307.48x = 1,820,647.83 × 715,695.48
  4. Step 4: Simplify right side
    1,319,307.48x = 1,303,029,422,602.81
  5. Step 5: Solve for x
    x = 1,303,029,422,602.81/1,319,307.48
  6. Step 6: Final answer
    x = 987,661.67

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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.