Home / 630,963.04-870,829.02-401,280.88

Finding the Fourth Proportional to 630,963.04, 870,829.02 and 401,280.88

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Solution

The fourth proportional to 630,963.04, 870,829.02 and 401,280.88 is: 553,831.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,963.04 : 870,829.02 = 401,280.88 : x
  2. Step 2: Convert to fraction form
    630,963.04/870,829.02 = 401,280.88/x
  3. Step 3: Cross multiply
    630,963.04x = 870,829.02 × 401,280.88
  4. Step 4: Simplify right side
    630,963.04x = 349,447,035,475.14
  5. Step 5: Solve for x
    x = 349,447,035,475.14/630,963.04
  6. Step 6: Final answer
    x = 553,831.23

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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.