Home / 942,278.40-1,300,378.32-539,948.16

Finding the Fourth Proportional to 942,278.40, 1,300,378.32 and 539,948.16

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Solution

The fourth proportional to 942,278.40, 1,300,378.32 and 539,948.16 is: 745,148.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,278.40 : 1,300,378.32 = 539,948.16 : x
  2. Step 2: Convert to fraction form
    942,278.40/1,300,378.32 = 539,948.16/x
  3. Step 3: Cross multiply
    942,278.40x = 1,300,378.32 × 539,948.16
  4. Step 4: Simplify right side
    942,278.40x = 702,136,881,187.89
  5. Step 5: Solve for x
    x = 702,136,881,187.89/942,278.40
  6. Step 6: Final answer
    x = 745,148.02

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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.