Home / 1,316,032.92-1,815,814.18-764,420.86

Finding the Fourth Proportional to 1,316,032.92, 1,815,814.18 and 764,420.86

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Solution

The fourth proportional to 1,316,032.92, 1,815,814.18 and 764,420.86 is: 1,054,720.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,032.92 : 1,815,814.18 = 764,420.86 : x
  2. Step 2: Convert to fraction form
    1,316,032.92/1,815,814.18 = 764,420.86/x
  3. Step 3: Cross multiply
    1,316,032.92x = 1,815,814.18 × 764,420.86
  4. Step 4: Simplify right side
    1,316,032.92x = 1,388,046,237,075.79
  5. Step 5: Solve for x
    x = 1,388,046,237,075.79/1,316,032.92
  6. Step 6: Final answer
    x = 1,054,720.00

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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.