Finding the Fourth Proportional to 902,831.12, 1,246,303.80 and 631,962.80
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Solution
The fourth proportional to 902,831.12, 1,246,303.80 and 631,962.80 is: 872,386.45
Step by Step Solution
- Step 1: Write the proportion equation
902,831.12 : 1,246,303.80 = 631,962.80 : x - Step 2: Convert to fraction form
902,831.12/1,246,303.80 = 631,962.80/x - Step 3: Cross multiply
902,831.12x = 1,246,303.80 × 631,962.80 - Step 4: Simplify right side
902,831.12x = 787,617,639,098.64 - Step 5: Solve for x
x = 787,617,639,098.64/902,831.12 - Step 6: Final answer
x = 872,386.45
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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.