Home / 875,626.20-1,312,418.70-402,359.40

Finding the Fourth Proportional to 875,626.20, 1,312,418.70 and 402,359.40

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Solution

The fourth proportional to 875,626.20, 1,312,418.70 and 402,359.40 is: 603,070.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,626.20 : 1,312,418.70 = 402,359.40 : x
  2. Step 2: Convert to fraction form
    875,626.20/1,312,418.70 = 402,359.40/x
  3. Step 3: Cross multiply
    875,626.20x = 1,312,418.70 × 402,359.40
  4. Step 4: Simplify right side
    875,626.20x = 528,064,000,680.78
  5. Step 5: Solve for x
    x = 528,064,000,680.78/875,626.20
  6. Step 6: Final answer
    x = 603,070.12

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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.