Finding the Fourth Proportional to 875,831.55, 1,208,683.41 and 553,424.01
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Solution
The fourth proportional to 875,831.55, 1,208,683.41 and 553,424.01 is: 763,747.80
Step by Step Solution
- Step 1: Write the proportion equation
875,831.55 : 1,208,683.41 = 553,424.01 : x - Step 2: Convert to fraction form
875,831.55/1,208,683.41 = 553,424.01/x - Step 3: Cross multiply
875,831.55x = 1,208,683.41 × 553,424.01 - Step 4: Simplify right side
875,831.55x = 668,914,412,974.77 - Step 5: Solve for x
x = 668,914,412,974.77/875,831.55 - Step 6: Final answer
x = 763,747.80
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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.