Finding the Fourth Proportional to 517,712.40, 714,303.63 and 302,905.26
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Solution
The fourth proportional to 517,712.40, 714,303.63 and 302,905.26 is: 417,927.65
Step by Step Solution
- Step 1: Write the proportion equation
517,712.40 : 714,303.63 = 302,905.26 : x - Step 2: Convert to fraction form
517,712.40/714,303.63 = 302,905.26/x - Step 3: Cross multiply
517,712.40x = 714,303.63 × 302,905.26 - Step 4: Simplify right side
517,712.40x = 216,366,326,764.09 - Step 5: Solve for x
x = 216,366,326,764.09/517,712.40 - Step 6: Final answer
x = 417,927.65
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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.