Finding the Fourth Proportional to 657,487.13, 907,332.23 and 355,681.13
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Solution
The fourth proportional to 657,487.13, 907,332.23 and 355,681.13 is: 490,839.95
Step by Step Solution
- Step 1: Write the proportion equation
657,487.13 : 907,332.23 = 355,681.13 : x - Step 2: Convert to fraction form
657,487.13/907,332.23 = 355,681.13/x - Step 3: Cross multiply
657,487.13x = 907,332.23 × 355,681.13 - Step 4: Simplify right side
657,487.13x = 322,720,949,204.36 - Step 5: Solve for x
x = 322,720,949,204.36/657,487.13 - Step 6: Final answer
x = 490,839.95
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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.