Home / 851,931.60-1,280,521.80-804,692.40

Finding the Fourth Proportional to 851,931.60, 1,280,521.80 and 804,692.40

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Solution

The fourth proportional to 851,931.60, 1,280,521.80 and 804,692.40 is: 1,209,517.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,931.60 : 1,280,521.80 = 804,692.40 : x
  2. Step 2: Convert to fraction form
    851,931.60/1,280,521.80 = 804,692.40/x
  3. Step 3: Cross multiply
    851,931.60x = 1,280,521.80 × 804,692.40
  4. Step 4: Simplify right side
    851,931.60x = 1,030,426,160,494.32
  5. Step 5: Solve for x
    x = 1,030,426,160,494.32/851,931.60
  6. Step 6: Final answer
    x = 1,209,517.48

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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.