Home / 1,303,450,320.40-1,957,442,962.20-691,230,288.40

Finding the Fourth Proportional to 1,303,450,320.40, 1,957,442,962.20 and 691,230,288.40

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Solution

The fourth proportional to 1,303,450,320.40, 1,957,442,962.20 and 691,230,288.40 is: 1,038,047,896.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303,450,320.40 : 1,957,442,962.20 = 691,230,288.40 : x
  2. Step 2: Convert to fraction form
    1,303,450,320.40/1,957,442,962.20 = 691,230,288.40/x
  3. Step 3: Cross multiply
    1,303,450,320.40x = 1,957,442,962.20 × 691,230,288.40
  4. Step 4: Simplify right side
    1,303,450,320.40x = 1,353,043,863,288,056,320
  5. Step 5: Solve for x
    x = 1,353,043,863,288,056,320/1,303,450,320.40
  6. Step 6: Final answer
    x = 1,038,047,896.50

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1.5x scale

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.