Home / 862,907.60-1,295,129.40-507,477.20

Finding the Fourth Proportional to 862,907.60, 1,295,129.40 and 507,477.20

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Solution

The fourth proportional to 862,907.60, 1,295,129.40 and 507,477.20 is: 761,667.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,907.60 : 1,295,129.40 = 507,477.20 : x
  2. Step 2: Convert to fraction form
    862,907.60/1,295,129.40 = 507,477.20/x
  3. Step 3: Cross multiply
    862,907.60x = 1,295,129.40 × 507,477.20
  4. Step 4: Simplify right side
    862,907.60x = 657,248,641,549.68
  5. Step 5: Solve for x
    x = 657,248,641,549.68/862,907.60
  6. Step 6: Final answer
    x = 761,667.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.