Home / 920,011.07-1,380,238.95-288,924.89

Finding the Fourth Proportional to 920,011.07, 1,380,238.95 and 288,924.89

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Solution

The fourth proportional to 920,011.07, 1,380,238.95 and 288,924.89 is: 433,457.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,011.07 : 1,380,238.95 = 288,924.89 : x
  2. Step 2: Convert to fraction form
    920,011.07/1,380,238.95 = 288,924.89/x
  3. Step 3: Cross multiply
    920,011.07x = 1,380,238.95 × 288,924.89
  4. Step 4: Simplify right side
    920,011.07x = 398,785,379,901.27
  5. Step 5: Solve for x
    x = 398,785,379,901.27/920,011.07
  6. Step 6: Final answer
    x = 433,457.16

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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.