Home / 879,477.20-1,319,215.80-874,228.40

Finding the Fourth Proportional to 879,477.20, 1,319,215.80 and 874,228.40

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Solution

The fourth proportional to 879,477.20, 1,319,215.80 and 874,228.40 is: 1,311,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,477.20 : 1,319,215.80 = 874,228.40 : x
  2. Step 2: Convert to fraction form
    879,477.20/1,319,215.80 = 874,228.40/x
  3. Step 3: Cross multiply
    879,477.20x = 1,319,215.80 × 874,228.40
  4. Step 4: Simplify right side
    879,477.20x = 1,153,295,918,088.72
  5. Step 5: Solve for x
    x = 1,153,295,918,088.72/879,477.20
  6. Step 6: Final answer
    x = 1,311,342.60

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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.