Home / 885,827.20-1,328,740.80-353,430.40

Finding the Fourth Proportional to 885,827.20, 1,328,740.80 and 353,430.40

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Solution

The fourth proportional to 885,827.20, 1,328,740.80 and 353,430.40 is: 530,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,827.20 : 1,328,740.80 = 353,430.40 : x
  2. Step 2: Convert to fraction form
    885,827.20/1,328,740.80 = 353,430.40/x
  3. Step 3: Cross multiply
    885,827.20x = 1,328,740.80 × 353,430.40
  4. Step 4: Simplify right side
    885,827.20x = 469,617,392,440.32
  5. Step 5: Solve for x
    x = 469,617,392,440.32/885,827.20
  6. Step 6: Final answer
    x = 530,145.60

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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.