Home / 862,320.16-1,190,038.60-480,347.11

Finding the Fourth Proportional to 862,320.16, 1,190,038.60 and 480,347.11

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Solution

The fourth proportional to 862,320.16, 1,190,038.60 and 480,347.11 is: 662,899.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,320.16 : 1,190,038.60 = 480,347.11 : x
  2. Step 2: Convert to fraction form
    862,320.16/1,190,038.60 = 480,347.11/x
  3. Step 3: Cross multiply
    862,320.16x = 1,190,038.60 × 480,347.11
  4. Step 4: Simplify right side
    862,320.16x = 571,631,602,298.45
  5. Step 5: Solve for x
    x = 571,631,602,298.45/862,320.16
  6. Step 6: Final answer
    x = 662,899.50

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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.