Finding the Fourth Proportional to 935,809.41, 1,291,420.86 and 506,089.53
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Solution
The fourth proportional to 935,809.41, 1,291,420.86 and 506,089.53 is: 698,405.65
Step by Step Solution
- Step 1: Write the proportion equation
935,809.41 : 1,291,420.86 = 506,089.53 : x - Step 2: Convert to fraction form
935,809.41/1,291,420.86 = 506,089.53/x - Step 3: Cross multiply
935,809.41x = 1,291,420.86 × 506,089.53 - Step 4: Simplify right side
935,809.41x = 653,574,576,069.60 - Step 5: Solve for x
x = 653,574,576,069.60/935,809.41 - Step 6: Final answer
x = 698,405.65
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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.