Home / 830,740.80-1,146,421.56-448,767.48

Finding the Fourth Proportional to 830,740.80, 1,146,421.56 and 448,767.48

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Solution

The fourth proportional to 830,740.80, 1,146,421.56 and 448,767.48 is: 619,298.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,740.80 : 1,146,421.56 = 448,767.48 : x
  2. Step 2: Convert to fraction form
    830,740.80/1,146,421.56 = 448,767.48/x
  3. Step 3: Cross multiply
    830,740.80x = 1,146,421.56 × 448,767.48
  4. Step 4: Simplify right side
    830,740.80x = 514,476,714,498.87
  5. Step 5: Solve for x
    x = 514,476,714,498.87/830,740.80
  6. Step 6: Final answer
    x = 619,298.72

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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.