Home / 1,029,381.98-1,420,603.78-570,487

Finding the Fourth Proportional to 1,029,381.98, 1,420,603.78 and 570,487

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Solution

The fourth proportional to 1,029,381.98, 1,420,603.78 and 570,487 is: 787,303.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,381.98 : 1,420,603.78 = 570,487 : x
  2. Step 2: Convert to fraction form
    1,029,381.98/1,420,603.78 = 570,487/x
  3. Step 3: Cross multiply
    1,029,381.98x = 1,420,603.78 × 570,487
  4. Step 4: Simplify right side
    1,029,381.98x = 810,435,988,640.86
  5. Step 5: Solve for x
    x = 810,435,988,640.86/1,029,381.98
  6. Step 6: Final answer
    x = 787,303.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.