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Finding the Fourth Proportional to 425,293.36, 586,510.61 and 310,390.00

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Solution

The fourth proportional to 425,293.36, 586,510.61 and 310,390.00 is: 428,050.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,293.36 : 586,510.61 = 310,390.00 : x
  2. Step 2: Convert to fraction form
    425,293.36/586,510.61 = 310,390.00/x
  3. Step 3: Cross multiply
    425,293.36x = 586,510.61 × 310,390.00
  4. Step 4: Simplify right side
    425,293.36x = 182,047,027,547.60
  5. Step 5: Solve for x
    x = 182,047,027,547.60/425,293.36
  6. Step 6: Final answer
    x = 428,050.48

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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.