Home / 810,000.60-1,215,000.90-584,885.40

Finding the Fourth Proportional to 810,000.60, 1,215,000.90 and 584,885.40

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Solution

The fourth proportional to 810,000.60, 1,215,000.90 and 584,885.40 is: 877,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,000.60 : 1,215,000.90 = 584,885.40 : x
  2. Step 2: Convert to fraction form
    810,000.60/1,215,000.90 = 584,885.40/x
  3. Step 3: Cross multiply
    810,000.60x = 1,215,000.90 × 584,885.40
  4. Step 4: Simplify right side
    810,000.60x = 710,636,287,396.86
  5. Step 5: Solve for x
    x = 710,636,287,396.86/810,000.60
  6. Step 6: Final answer
    x = 877,328.10

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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.