Home / 763,320.80-1,144,981.20-448,133.60

Finding the Fourth Proportional to 763,320.80, 1,144,981.20 and 448,133.60

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Solution

The fourth proportional to 763,320.80, 1,144,981.20 and 448,133.60 is: 672,200.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,320.80 : 1,144,981.20 = 448,133.60 : x
  2. Step 2: Convert to fraction form
    763,320.80/1,144,981.20 = 448,133.60/x
  3. Step 3: Cross multiply
    763,320.80x = 1,144,981.20 × 448,133.60
  4. Step 4: Simplify right side
    763,320.80x = 513,104,547,088.32
  5. Step 5: Solve for x
    x = 513,104,547,088.32/763,320.80
  6. Step 6: Final answer
    x = 672,200.40

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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.