Home / 875,624.20-1,312,415.70-402,357.40

Finding the Fourth Proportional to 875,624.20, 1,312,415.70 and 402,357.40

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Solution

The fourth proportional to 875,624.20, 1,312,415.70 and 402,357.40 is: 603,067.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,624.20 : 1,312,415.70 = 402,357.40 : x
  2. Step 2: Convert to fraction form
    875,624.20/1,312,415.70 = 402,357.40/x
  3. Step 3: Cross multiply
    875,624.20x = 1,312,415.70 × 402,357.40
  4. Step 4: Simplify right side
    875,624.20x = 528,060,168,771.18
  5. Step 5: Solve for x
    x = 528,060,168,771.18/875,624.20
  6. Step 6: Final answer
    x = 603,067.12

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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.