Home / 1,710,428.40-2,565,314.55-512,389.80

Finding the Fourth Proportional to 1,710,428.40, 2,565,314.55 and 512,389.80

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Solution

The fourth proportional to 1,710,428.40, 2,565,314.55 and 512,389.80 is: 768,486.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,710,428.40 : 2,565,314.55 = 512,389.80 : x
  2. Step 2: Convert to fraction form
    1,710,428.40/2,565,314.55 = 512,389.80/x
  3. Step 3: Cross multiply
    1,710,428.40x = 2,565,314.55 × 512,389.80
  4. Step 4: Simplify right side
    1,710,428.40x = 1,314,441,009,211.59
  5. Step 5: Solve for x
    x = 1,314,441,009,211.59/1,710,428.40
  6. Step 6: Final answer
    x = 768,486.43

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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.