Home / 727,477.92-1,003,946.58-400,804.20

Finding the Fourth Proportional to 727,477.92, 1,003,946.58 and 400,804.20

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Solution

The fourth proportional to 727,477.92, 1,003,946.58 and 400,804.20 is: 553,124.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,477.92 : 1,003,946.58 = 400,804.20 : x
  2. Step 2: Convert to fraction form
    727,477.92/1,003,946.58 = 400,804.20/x
  3. Step 3: Cross multiply
    727,477.92x = 1,003,946.58 × 400,804.20
  4. Step 4: Simplify right side
    727,477.92x = 402,386,005,839.64
  5. Step 5: Solve for x
    x = 402,386,005,839.64/727,477.92
  6. Step 6: Final answer
    x = 553,124.70

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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.