Home / 426,545.20-637,052.44-386,484.22

Finding the Fourth Proportional to 426,545.20, 637,052.44 and 386,484.22

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Solution

The fourth proportional to 426,545.20, 637,052.44 and 386,484.22 is: 577,220.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,545.20 : 637,052.44 = 386,484.22 : x
  2. Step 2: Convert to fraction form
    426,545.20/637,052.44 = 386,484.22/x
  3. Step 3: Cross multiply
    426,545.20x = 637,052.44 × 386,484.22
  4. Step 4: Simplify right side
    426,545.20x = 246,210,712,813.66
  5. Step 5: Solve for x
    x = 246,210,712,813.66/426,545.20
  6. Step 6: Final answer
    x = 577,220.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.