Home / 830,803.91-1,146,510.45-448,830.72

Finding the Fourth Proportional to 830,803.91, 1,146,510.45 and 448,830.72

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Solution

The fourth proportional to 830,803.91, 1,146,510.45 and 448,830.72 is: 619,386.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,803.91 : 1,146,510.45 = 448,830.72 : x
  2. Step 2: Convert to fraction form
    830,803.91/1,146,510.45 = 448,830.72/x
  3. Step 3: Cross multiply
    830,803.91x = 1,146,510.45 × 448,830.72
  4. Step 4: Simplify right side
    830,803.91x = 514,589,110,761.02
  5. Step 5: Solve for x
    x = 514,589,110,761.02/830,803.91
  6. Step 6: Final answer
    x = 619,386.97

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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.