Home / 879,748.40-1,319,622.60-778,271.60

Finding the Fourth Proportional to 879,748.40, 1,319,622.60 and 778,271.60

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Solution

The fourth proportional to 879,748.40, 1,319,622.60 and 778,271.60 is: 1,167,407.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,748.40 : 1,319,622.60 = 778,271.60 : x
  2. Step 2: Convert to fraction form
    879,748.40/1,319,622.60 = 778,271.60/x
  3. Step 3: Cross multiply
    879,748.40x = 1,319,622.60 × 778,271.60
  4. Step 4: Simplify right side
    879,748.40x = 1,027,024,792,298.16
  5. Step 5: Solve for x
    x = 1,027,024,792,298.16/879,748.40
  6. Step 6: Final answer
    x = 1,167,407.40

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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.