Finding the Fourth Proportional to 640,502.60, 883,962.12 and 368,582.36
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Solution
The fourth proportional to 640,502.60, 883,962.12 and 368,582.36 is: 508,683.09
Step by Step Solution
- Step 1: Write the proportion equation
640,502.60 : 883,962.12 = 368,582.36 : x - Step 2: Convert to fraction form
640,502.60/883,962.12 = 368,582.36/x - Step 3: Cross multiply
640,502.60x = 883,962.12 × 368,582.36 - Step 4: Simplify right side
640,502.60x = 325,812,844,340.20 - Step 5: Solve for x
x = 325,812,844,340.20/640,502.60 - Step 6: Final answer
x = 508,683.09
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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.