Home / 860,337.63-1,290,506.31-409,692.20

Finding the Fourth Proportional to 860,337.63, 1,290,506.31 and 409,692.20

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Solution

The fourth proportional to 860,337.63, 1,290,506.31 and 409,692.20 is: 614,538.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,337.63 : 1,290,506.31 = 409,692.20 : x
  2. Step 2: Convert to fraction form
    860,337.63/1,290,506.31 = 409,692.20/x
  3. Step 3: Cross multiply
    860,337.63x = 1,290,506.31 × 409,692.20
  4. Step 4: Simplify right side
    860,337.63x = 528,710,362,805.25
  5. Step 5: Solve for x
    x = 528,710,362,805.25/860,337.63
  6. Step 6: Final answer
    x = 614,538.23

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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.