Home / 1,045,028.60-1,565,210.10-858,404.60

Finding the Fourth Proportional to 1,045,028.60, 1,565,210.10 and 858,404.60

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Solution

The fourth proportional to 1,045,028.60, 1,565,210.10 and 858,404.60 is: 1,285,690.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045,028.60 : 1,565,210.10 = 858,404.60 : x
  2. Step 2: Convert to fraction form
    1,045,028.60/1,565,210.10 = 858,404.60/x
  3. Step 3: Cross multiply
    1,045,028.60x = 1,565,210.10 × 858,404.60
  4. Step 4: Simplify right side
    1,045,028.60x = 1,343,583,549,806.46
  5. Step 5: Solve for x
    x = 1,343,583,549,806.46/1,045,028.60
  6. Step 6: Final answer
    x = 1,285,690.70

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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.