Home / 1,038,489.80-1,557,734.70-637,831.40

Finding the Fourth Proportional to 1,038,489.80, 1,557,734.70 and 637,831.40

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Solution

The fourth proportional to 1,038,489.80, 1,557,734.70 and 637,831.40 is: 956,747.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,489.80 : 1,557,734.70 = 637,831.40 : x
  2. Step 2: Convert to fraction form
    1,038,489.80/1,557,734.70 = 637,831.40/x
  3. Step 3: Cross multiply
    1,038,489.80x = 1,557,734.70 × 637,831.40
  4. Step 4: Simplify right side
    1,038,489.80x = 993,572,104,529.58
  5. Step 5: Solve for x
    x = 993,572,104,529.58/1,038,489.80
  6. Step 6: Final answer
    x = 956,747.10

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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.