Home / 1,376,877.60-2,065,510.80-430,149.60

Finding the Fourth Proportional to 1,376,877.60, 2,065,510.80 and 430,149.60

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Solution

The fourth proportional to 1,376,877.60, 2,065,510.80 and 430,149.60 is: 645,285.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,877.60 : 2,065,510.80 = 430,149.60 : x
  2. Step 2: Convert to fraction form
    1,376,877.60/2,065,510.80 = 430,149.60/x
  3. Step 3: Cross multiply
    1,376,877.60x = 2,065,510.80 × 430,149.60
  4. Step 4: Simplify right side
    1,376,877.60x = 888,478,644,415.68
  5. Step 5: Solve for x
    x = 888,478,644,415.68/1,376,877.60
  6. Step 6: Final answer
    x = 645,285.13

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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.