Home / 887,712.70-1,331,569.05-390,048.70

Finding the Fourth Proportional to 887,712.70, 1,331,569.05 and 390,048.70

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Solution

The fourth proportional to 887,712.70, 1,331,569.05 and 390,048.70 is: 585,073.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,712.70 : 1,331,569.05 = 390,048.70 : x
  2. Step 2: Convert to fraction form
    887,712.70/1,331,569.05 = 390,048.70/x
  3. Step 3: Cross multiply
    887,712.70x = 1,331,569.05 × 390,048.70
  4. Step 4: Simplify right side
    887,712.70x = 519,376,776,912.74
  5. Step 5: Solve for x
    x = 519,376,776,912.74/887,712.70
  6. Step 6: Final answer
    x = 585,073.05

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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.