Home / 1,010,700.37-1,395,395.97-643,384.76

Finding the Fourth Proportional to 1,010,700.37, 1,395,395.97 and 643,384.76

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Solution

The fourth proportional to 1,010,700.37, 1,395,395.97 and 643,384.76 is: 888,271.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,700.37 : 1,395,395.97 = 643,384.76 : x
  2. Step 2: Convert to fraction form
    1,010,700.37/1,395,395.97 = 643,384.76/x
  3. Step 3: Cross multiply
    1,010,700.37x = 1,395,395.97 × 643,384.76
  4. Step 4: Simplify right side
    1,010,700.37x = 897,776,501,263.42
  5. Step 5: Solve for x
    x = 897,776,501,263.42/1,010,700.37
  6. Step 6: Final answer
    x = 888,271.67

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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.