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Finding the Fourth Proportional to 585,081.80, 877,622.70 and 490,603.40

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Solution

The fourth proportional to 585,081.80, 877,622.70 and 490,603.40 is: 735,905.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,081.80 : 877,622.70 = 490,603.40 : x
  2. Step 2: Convert to fraction form
    585,081.80/877,622.70 = 490,603.40/x
  3. Step 3: Cross multiply
    585,081.80x = 877,622.70 × 490,603.40
  4. Step 4: Simplify right side
    585,081.80x = 430,564,680,537.18
  5. Step 5: Solve for x
    x = 430,564,680,537.18/585,081.80
  6. Step 6: Final answer
    x = 735,905.10

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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.