Home / 520,237.02-717,916.14-290,787.90

Finding the Fourth Proportional to 520,237.02, 717,916.14 and 290,787.90

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Solution

The fourth proportional to 520,237.02, 717,916.14 and 290,787.90 is: 401,281.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,237.02 : 717,916.14 = 290,787.90 : x
  2. Step 2: Convert to fraction form
    520,237.02/717,916.14 = 290,787.90/x
  3. Step 3: Cross multiply
    520,237.02x = 717,916.14 × 290,787.90
  4. Step 4: Simplify right side
    520,237.02x = 208,761,326,726.71
  5. Step 5: Solve for x
    x = 208,761,326,726.71/520,237.02
  6. Step 6: Final answer
    x = 401,281.18

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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.