Home / 761,328.18-1,050,157.53-489,750.06

Finding the Fourth Proportional to 761,328.18, 1,050,157.53 and 489,750.06

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Solution

The fourth proportional to 761,328.18, 1,050,157.53 and 489,750.06 is: 675,549.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,328.18 : 1,050,157.53 = 489,750.06 : x
  2. Step 2: Convert to fraction form
    761,328.18/1,050,157.53 = 489,750.06/x
  3. Step 3: Cross multiply
    761,328.18x = 1,050,157.53 × 489,750.06
  4. Step 4: Simplify right side
    761,328.18x = 514,314,713,326.95
  5. Step 5: Solve for x
    x = 514,314,713,326.95/761,328.18
  6. Step 6: Final answer
    x = 675,549.29

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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.