Home / 1,435,400.40-2,152,711.80-424,520.40

Finding the Fourth Proportional to 1,435,400.40, 2,152,711.80 and 424,520.40

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Solution

The fourth proportional to 1,435,400.40, 2,152,711.80 and 424,520.40 is: 636,665.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,400.40 : 2,152,711.80 = 424,520.40 : x
  2. Step 2: Convert to fraction form
    1,435,400.40/2,152,711.80 = 424,520.40/x
  3. Step 3: Cross multiply
    1,435,400.40x = 2,152,711.80 × 424,520.40
  4. Step 4: Simplify right side
    1,435,400.40x = 913,870,074,420.72
  5. Step 5: Solve for x
    x = 913,870,074,420.72/1,435,400.40
  6. Step 6: Final answer
    x = 636,665.61

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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.