Finding the Fourth Proportional to 742,851.68, 1,025,106.80 and 403,312.48
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Solution
The fourth proportional to 742,851.68, 1,025,106.80 and 403,312.48 is: 556,555.74
Step by Step Solution
- Step 1: Write the proportion equation
742,851.68 : 1,025,106.80 = 403,312.48 : x - Step 2: Convert to fraction form
742,851.68/1,025,106.80 = 403,312.48/x - Step 3: Cross multiply
742,851.68x = 1,025,106.80 × 403,312.48 - Step 4: Simplify right side
742,851.68x = 413,438,365,772.86 - Step 5: Solve for x
x = 413,438,365,772.86/742,851.68 - Step 6: Final answer
x = 556,555.74
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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.