Home / 915,415.83-1,263,303.74-507,555.61

Finding the Fourth Proportional to 915,415.83, 1,263,303.74 and 507,555.61

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Solution

The fourth proportional to 915,415.83, 1,263,303.74 and 507,555.61 is: 700,443.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,415.83 : 1,263,303.74 = 507,555.61 : x
  2. Step 2: Convert to fraction form
    915,415.83/1,263,303.74 = 507,555.61/x
  3. Step 3: Cross multiply
    915,415.83x = 1,263,303.74 × 507,555.61
  4. Step 4: Simplify right side
    915,415.83x = 641,196,897,833.20
  5. Step 5: Solve for x
    x = 641,196,897,833.20/915,415.83
  6. Step 6: Final answer
    x = 700,443.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.